🗣️ CPT 92507 — Treatment of Speech, Language, Voice, Communication, and/or Auditory Processing Disorder; Individual
Quick Reference
wRVU: 0.76 | Global Period: 000 | Assistant Payable: No | Bilateral Indicator: 0 Rule: A global period of 000 means all pre-service work on the day of the session is bundled into the reported code; no postoperative follow-up period applies because 92507 is a therapeutic service code rather than a surgical procedure. The bilateral indicator of 0 reflects that speech-language treatment is a whole-person service without a lateralized anatomical analog, making modifiers -50, -RT, and -LT incompatible. This code is reported once per session regardless of session duration and does not support multiple units per encounter.
📋 Clinical Description
CPT 92507 describes a one-on-one therapeutic treatment session provided by a qualified speech-language pathologist (SLP) targeting disorders of speech, language, voice, communication, and/or auditory processing.1 This code is reported per encounter and covers the full spectrum of individual therapeutic interventions delivered to a single patient; it is distinct from 92508, which applies to group therapy involving two or more patients simultaneously, and from 92526, which is specifically designated for swallowing dysfunction or oral function for feeding and must not be substituted for 92507 when the primary goal is swallowing rehabilitation.
The breadth of 92507 encompasses neurologically driven communication deficits such as aphasia and dysarthria, as well as functional and developmental disorders including phonological disorders, expressive and receptive language delays, fluency disorders, and voice disorders such as R49.0 dysphonia and R49.1 aphonia.2 In the inpatient and post-acute settings, 92507 is commonly documented following cerebrovascular accidents, traumatic brain injuries, or progressive neurological conditions such as multiple sclerosis or ALS that disrupt communicative function. The SLP documents the specific treatment modalities employed, the goals targeted, the patient’s response, and the medical necessity for continued therapy — all of which serve as the foundation for claim adjudication, LCD compliance, and audit defense.3
This procedure may be performed in the following clinical contexts:
- Post-stroke aphasia rehabilitation — Following cerebral infarction or hemorrhagic stroke, patients frequently present with expressive, receptive, or global aphasia requiring targeted individual speech-language treatment to restore functional communication; ICD-10-CM late-effect sequela codes such as I69.320 should be documented in lieu of symptom codes to accurately capture etiology and support HCC risk adjustment.
- Dysarthria treatment in neurological disease — Patients with multiple sclerosis (G35.D), ALS (G12.21), or Parkinson’s disease may develop motor speech disorders characterized by reduced intelligibility; 92507 is appropriately reported when the SLP addresses articulatory precision, prosody, and breath support through techniques such as Lee Silverman Voice Treatment (LSVT LOUD) or rate modification.
- Voice disorder treatment — Benign or functional voice disorders — including muscle tension dysphonia, vocal fold nodules, and post-surgical voice changes — are treated individually through vocal hygiene counseling, resonance exercises, and phonation shaping techniques; R49.0 or R49.1 are the appropriate pairing diagnoses depending on severity of phonatory impairment.
- Pediatric and adult language disorders — Children and adults with expressive or mixed receptive-expressive language disorders, including those coded as F80.1 or F80.2, receive individual language therapy targeting vocabulary expansion, sentence formulation, narrative organization, and pragmatic communication skills; developmental etiologies require careful code selection to avoid conflating acquired and developmental disorder codes.
- Auditory processing disorder treatment — Patients diagnosed with central auditory processing disorder (H93.25) may receive individual therapy targeting auditory discrimination, figure-ground processing, and listening strategies when the SLP is the treating clinician of record; coders must distinguish central processing deficits (H93.25) from peripheral hearing loss, which maps to a different code family entirely.
🔬 Anatomical & Procedural Considerations
| Variant | Mechanism | Key Notes |
|---|---|---|
| Aphasia Treatment | The SLP employs evidence-based techniques such as Constraint-Induced Language Therapy (CILT), Script Training, or Treatment of Underlying Forms (TUF) to stimulate neuroplasticity in language-dominant cortical areas following acquired brain injury; therapeutic tasks target lexical retrieval, sentence production, auditory comprehension, or reading depending on aphasia type and severity.4 The therapeutic framework is individualized to the patient’s aphasia classification — Broca’s, Wernicke’s, anomic, or global — and the functional communication goals established in the plan of care. | Documentation must specify the aphasia type and the functional communication goals being targeted; vague documentation such as “speech therapy provided” is insufficient for medical necessity justification and is an audit vulnerability. When aphasia is a residual from a prior neurological event, the I69 late-effect code family must be used on both the professional and facility claims rather than defaulting to R47.01. |
| Motor Speech Treatment | Dysarthria and apraxia of speech are addressed through articulatory placement drills, rate modification, LSVT LOUD, or prosodic training targeting improved speech intelligibility and communicative efficiency; the SLP identifies which motor speech subsystem (respiratory, phonatory, resonatory, articulatory, or prosodic) is most impaired and directs treatment accordingly.1 Objective intelligibility measures — such as percent words correctly identified by an unfamiliar listener — should be documented at intake and at regular intervals to support continued medical necessity. | For inpatient coding, dysarthria associated with conditions such as G35.D or G12.21 may qualify as a CC depending on the MS-DRG payor grouper in effect; precise coding of the underlying neurological etiology on the facility claim is essential for DRG weight optimization and CDI accuracy. The SLP’s documentation of functional severity and communication impact is equally critical for supporting the professional fee claim for 92507. |
| Voice and Communication Treatment | Voice therapy encompasses exercises targeting phonation quality, vocal fold adduction, pitch and loudness control, and resonance; communication treatment may additionally address pragmatic language deficits, AAC strategy training, or cognitive-communication rehabilitation when natural speech is insufficient for functional participation.2 This variant spans the widest range of etiologies — from functional voice disorders to communication deficits secondary to tracheostomy, laryngeal cancer treatment, acquired cognitive impairment, or traumatic brain injury. | When the primary treatment focus shifts entirely to swallowing rehabilitation, 92526 is the correct code and 92507 should not be reported for that session; when AAC device programming is the primary service, 92609 is the appropriate code. Accurate distinction between these overlapping services is essential to avoid unbundling violations and to withstand payor audit review. |
Clinical Pearl
CPT 92507 is a per-encounter code, not a time-based code — it is reported as one unit per individual session regardless of whether the session is 30 minutes or 90 minutes. Reporting multiple units of 92507 for a single session is overcoding and constitutes a billing error subject to claim denial and recoupment. When both a formal evaluation (e.g., 92521, 92522, or 92523) and a distinct treatment session are performed on the same date of service, the evaluation code may be reported alongside 92507 only when the documentation clearly supports two separate, individually necessary services; same-day evaluation and treatment is a known audit trigger and requires unambiguous documentation of medical necessity for each service.
✅ Procedure Includes
- Individual one-on-one therapeutic treatment — The session is provided between the SLP and a single patient; group sessions involving two or more patients are reported under 92508 and are mutually exclusive with 92507 for the same patient on the same date.
- All therapeutic exercises and activities delivered during the session — Drill practice, cueing hierarchies, compensatory strategy training, voice exercises, auditory processing tasks, and all other therapeutic modalities administered during the individual session are bundled into a single unit of 92507.
- Brief clinical assessment and progress monitoring performed during treatment — Ongoing assessment of the patient’s response to therapeutic tasks and informal progress monitoring that occurs as part of the session are bundled and not separately billable.
- Patient and caregiver instruction incidental to the session — Brief instruction to family members or caregivers provided during the treatment session is bundled and not separately reportable as a standalone education service.
- Preparation of treatment materials — Selection and preparation of stimulus materials, software programs, picture boards, or AAC materials used directly within the session are included in the service.
- Session documentation time — Time spent completing session notes, updating the treatment plan, and recording patient response is considered part of the professional service bundled into 92507.
❌ Excludes / Do Not Report Together
| Code | Description | Relationship |
|---|---|---|
| 92508 | Treatment of speech, language, voice, communication, and/or auditory processing disorder; group, 2 or more individuals | 92507 and 92508 are mutually exclusive for a given patient on a given date; the distinction is defined entirely by session format — individual versus group — and is not discretionary. Documentation must clearly identify whether the session was individual or involved two or more patients simultaneously, as billing the higher-complexity individual code for a group session is a fraudulent billing pattern. |
| 92526 | Treatment of swallowing dysfunction and/or oral function for feeding | When the primary or sole therapeutic focus of the session is dysphagia management or oral feeding function, 92526 is the correct code; reporting 92507 and 92526 together for a single session is only supportable when each service was distinct, separately documented, and medically necessary in its own right — and even then, this pairing is a known audit trigger requiring robust documentation. |
| 92609 | Therapeutic service(s) for the use of speech-generating device, including programming and modification | When the primary purpose of the session is programming or modifying a speech-generating AAC device, 92609 is the appropriate code rather than 92507; these two codes may be reported together only when the SLP provides substantive speech-language treatment that is clearly separate from and documented independently of the device programming service. |
| 92610 | Evaluation of oral and pharyngeal swallowing function | This is a diagnostic evaluation code and is not bundled with 92507; however, if evaluation and treatment are performed on the same date, each service must have independent documentation of medical necessity, and the two services must be distinct in purpose and timing to support dual billing on the same date of service. |
Bundling Alert
The most frequent audit risks associated with 92507 involve reporting multiple units per session, billing 92507 and 92508 for the same patient on the same date, and reporting 92507 and 92526 together without distinct documentation supporting two separate therapeutic services. CMS and most commercial payers will deny duplicate same-day units of 92507 for the same patient and provider; similarly, reporting both individual and group therapy codes for the same session constitutes overcoding and will trigger post-payment audit review. For Medicare beneficiaries, ensure that modifier -GN is appended when required and that the treating SLP’s plan of care, therapy notes, and billing all reflect consistent and medically necessary individual speech-language services meeting applicable LCD criteria.3
🌳 Code Tree — Medicine: Special Otorhinolaryngologic Services
CPT 92502-92700 Medicine: Special Otorhinolaryngologic Services
│
├── 92502-92520 Otolaryngologic Examination and Laryngeal Function Studies
│ ├── 92502 Otolaryngologic examination under general anesthesia
│ └── 92520 Laryngeal function studies
│
├── 92521-92526 Speech-Language Pathology Evaluation and Treatment
│ ├── 92521 Evaluation of speech fluency (e.g., stuttering) (Global: XXX)
│ ├── 92522 Evaluation of speech sound production (Global: XXX)
│ ├── 92523 Evaluation of speech sound production with evaluation of language comprehension and expression (Global: XXX)
│ ├── 92524 Behavioral and qualitative analysis of voice and resonance (Global: XXX)
│ ├── ▶▶ 92507 ◀◀ Treatment of speech, language, voice, communication, and/or auditory processing disorder; individual ← YOU ARE HERE (Global: 000)
│ ├── 92508 Treatment of speech, language, voice, communication, and/or auditory processing disorder; group, 2 or more individuals (Global: 000)
│ └── 92526 Treatment of swallowing dysfunction and/or oral function for feeding (Global: 000)
│
└── 92597-92700 AAC, Device Services, and Hearing Aid Services
├── 92609 Therapeutic service(s) for the use of speech-generating device, including programming and modification (Global: 000)
└── 92610 Evaluation of oral and pharyngeal swallowing function (Global: XXX)
💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU | 0.76 |
| Global Period | 000 |
| Bilateral Indicator | 0 — not a bilateral procedure; concept does not apply |
| Assistant Surgeon | N/A — not a surgical procedure |
| Co‑Surgeon | N/A — not applicable |
| Team Surgery | N/A — not applicable |
| PC/TC Split | 0 — no professional/technical component split |
| Modifier -51 Exempt | No |
| Anesthesia | Not applicable |
Bilateral Billing Rules
CPT 92507 carries a bilateral indicator of 0, meaning the concept of bilateral billing does not apply to this code and modifier -50 is never appropriate. Modifiers -RT and -LT are similarly incompatible with 92507 because speech-language treatment is a neurological and functional service rather than a lateralized anatomical procedure. The reimbursement for 92507 is a flat per-session rate regardless of the number of treatment targets or modalities addressed within the session, and no payment adjustment exists for session length because 92507 is not a time-based code.2
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -GN | Services Delivered Under Speech-Language Pathology Plan of Care | Required by CMS when the treating clinician is a speech-language pathologist billing under Medicare Part B; -GN identifies that the service was delivered under an SLP-established plan of care and is mandatory when the SLP bills independently rather than incident-to a physician’s service. Failure to append -GN when required results in claim denial; billing -GP or -GO in its place when the treating clinician is an SLP is a modifier error and an audit flag.3 |
| -KX | Requirements of Applicable LCD Have Been Met | Append -KX when clinical documentation supports that the patient meets all criteria of the applicable Local Coverage Determination for SLP services, including documented medical necessity, a restorative or maintenance therapy justification, and specific functional goals. For Medicare beneficiaries, -KX is required once the therapy financial cap threshold is reached under the exceptions process; claims above the threshold without -KX will be denied. |
| -GA | Waiver of Liability Statement on File | Append -GA when the SLP has obtained a signed Advance Beneficiary Notice (ABN) from the patient indicating that Medicare may deny the service and the patient agrees to be financially responsible; this modifier protects the provider from financial liability in the event of a medical necessity denial. |
| -GZ | Item or Service Expected to Be Denied as Not Reasonable and Necessary | Used when the SLP anticipates CMS will deny the service as not medically necessary and no ABN was obtained; -GZ signals that no patient financial liability is intended, and the provider accepts responsibility for the denied charge. |
| -59 | Distinct Procedural Service | May be appended when 92507 and a separate, distinct evaluation code (e.g., 92521 or 92522) are performed on the same date of service, provided the documentation clearly supports that each service was separately necessary, separately documented, and distinct in its clinical purpose. This modifier must not be used to bypass bundling edits when services were not genuinely distinct. |
| -52 | Reduced Services | Append -52 when the session was significantly reduced from what is typically performed — for example, when the patient could not fully participate due to fatigue, acute medical instability, or refusal; the documentation must describe what was accomplished and what was omitted to support the reduced-service claim. |
| -53 | Discontinued Procedure | Append -53 when the treatment session was initiated but discontinued prior to completion due to patient safety concerns or sudden medical deterioration; this modifier signals that the service was not completed as planned and protects against a claim denial for incomplete documentation. |
| -95 | Synchronous Telemedicine Service Rendered via Real-Time Interactive Audio and Video Telecommunications System | Append -95 when 92507 is delivered via synchronous audio-visual telemedicine technology; payer-specific coverage policies for telehealth SLP services must be verified before reporting, as Medicare and commercial coverage criteria vary by plan and may require additional documentation supporting the clinical appropriateness of remote delivery. |
| -25 | Significant, Separately Identifiable Evaluation and Management Service | Not appended to 92507 itself — modifier -25 is an E/M modifier and does not apply to therapy procedure codes; however, if a physician or qualified practitioner performs a significant and separately identifiable E/M service on the same date as the SLP’s 92507 session, -25 is appended to the E/M code to distinguish it from the therapy service, not to 92507. |
🩺 Common ICD‑10‑CM Pairings
Primary Diagnosis Group
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| R47.01 | Aphasia | No | Aphasia is among the most common primary diagnoses reported with 92507 in the outpatient and profee inpatient settings; R47.01 is the billable specificity level — coders should not use the R47 parent code and should verify whether a more specific etiologic code from the I69 sequela family applies before assigning this symptom code. |
| R47.02 | Dysphasia | No | Dysphasia reflects a milder disruption of language formulation or comprehension than full aphasia; select this code only when the treating clinician specifically documents dysphasia rather than aphasia, as incorrect interchangeable assignment of R47.01 and R47.02 is a specificity error and a potential audit flag. |
| R47.1 | Dysarthria and anarthria | No | Report R47.1 when the speech disorder is motor in origin — affecting articulation, phonation, or resonance — rather than language-based; dysarthria is frequently documented in patients with Parkinson’s disease, G35.D, G12.21, or post-stroke motor involvement and is appropriately paired with 92507 when the SLP’s treatment targets motor speech intelligibility. |
| R49.0 | Dysphonia | No | Dysphonia is appropriate when the patient’s primary complaint is impaired voice quality, including hoarseness, breathiness, or strained phonation; coders should verify whether an underlying structural cause (e.g., vocal fold nodule, post-surgical changes) is documented and should also assign an etiology code when available to fully capture the diagnostic picture. |
| R49.1 | Aphonia | No | Aphonia indicates complete absence of voice and is appropriate when the SLP is treating a patient with no functional phonatory output, such as following laryngeal surgery, tracheostomy, or severe functional voice disorder; do not interchange with R49.0, which reflects partial voice impairment rather than complete loss of phonation. |
| F80.2 | Mixed receptive-expressive language disorder | No | This code applies to patients presenting with deficits in both understanding and producing language; coders must not assign F80.2 when only expressive deficits are documented — use F80.1 instead for isolated expressive language disorder, as the distinction reflects a clinically significant difference in severity and therapeutic approach. |
Secondary Group
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| I69.320 | Aphasia following cerebral infarction | Yes | This sequela code must be used instead of R47.01 when aphasia is a documented late effect of a prior ischemic stroke; correct use of the I69 sequela family is essential for HCC risk adjustment capture and CDI accuracy and should be reflected consistently on both the professional claim for 92507 and the facility claim when applicable. |
| I69.120 | Aphasia following nontraumatic intracerebral hemorrhage | Yes | Analogous to I69.320, this sequela code applies when aphasia is a documented residual from prior intracerebral hemorrhage; distinction between ischemic and hemorrhagic etiologies is clinically and financially meaningful and should be selected based on the documented stroke type in the medical record. |
Etiology / Complication
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| G35.D | Multiple sclerosis | Yes | Multiple sclerosis can produce dysarthria, cognitive-communication deficits, and voice changes requiring ongoing individual SLP intervention; G35.D maps to HCC 77 under CMS-HCC and is a high-value diagnosis for risk adjustment documentation that should be captured on the professional claim when it supports medical necessity for the 92507 session. |
| F98.5 | Adult onset fluency disorder | No | Report F98.5 when the SLP is providing individual treatment for stuttering or cluttering in an adult patient; this code is distinct from childhood onset fluency disorder (F80.81) and must be selected based on the documented age of onset — do not assign F98.5 when the treating clinician documents that the disorder began in childhood. |
Coding Specificity Reminder
When the speech or language disorder is a sequela of a prior neurological event, the I69 late-effect code family is the correct primary diagnosis rather than a symptom code from the R47 or R49 families, as symptom codes are not reported when a more definitive etiologic code is available and documented. Always verify whether the treating physician has documented a specific underlying neurological etiology before defaulting to a symptom-level code such as R47.01 or R47.1. In the inpatient setting, aphasia and dysarthria may qualify as CCs under certain MS-DRG groupings, making precise documentation and coding of these conditions critical for DRG weight optimization and CDI query generation. Do not assign F80.x developmental language disorder codes for adult patients with acquired communication deficits — R47.x or I69 codes are appropriate for acquired disorders in adult inpatient populations. For Medicare beneficiaries, the diagnosis coded on the professional claim for 92507 must align with the documentation in the plan of care and the treating SLP’s therapy notes to satisfy LCD and CERT audit requirements.3
🏥 MS‑DRG Considerations
CPT 92507 is a professional fee code and does not independently drive MS-DRG assignment; DRG grouping is determined by the inpatient facility claim (UB-04) based on ICD-10-CM and ICD-10-PCS codes rather than CPT codes.5 However, the diagnoses that support medical necessity for 92507 — including R47.01 aphasia and R47.1 dysarthria and their neurological etiologies — may qualify as CCs on the facility claim, directly affecting DRG weight and reimbursement when present as documented secondary diagnoses. For example, aphasia following cerebral infarction (I69.320) may serve as a CC in stroke-related DRG families under MDC 01 (Diseases and Disorders of the Nervous System), including the DRG 061-066 series, potentially elevating the case to a higher-weight DRG tier. CDI specialists should ensure that neurological late-effect codes and communication disorder diagnoses are thoroughly documented and captured on the facility claim when the patient is receiving inpatient SLP services, as these diagnoses have significant downstream financial impact beyond the professional fee claim for 92507. SLPs providing inpatient services should document the functional severity and clinical complexity of communication disorders with precision, as this documentation simultaneously supports the professional claim, the facility claim’s secondary diagnosis capture, and the CDI team’s ability to query for accurate and complete documentation.
🔧 ICD‑10‑PCS Equivalents
| PCS Code | Full Description | Modality |
|---|---|---|
| F06Z1ZZ | Speech Treatment, Rehabilitation, No Body Region, Aphasia, No Equipment, No Qualifier | Language Rehabilitation — Aphasia |
| F06Z7ZZ | Speech Treatment, Rehabilitation, No Body Region, Fluency, No Equipment, No Qualifier | Fluency Therapy |
| F06Z8ZZ | Speech Treatment, Rehabilitation, No Body Region, Motor Speech, No Equipment, No Qualifier | Motor Speech Therapy |
| F06ZAZZ | Speech Treatment, Rehabilitation, No Body Region, Receptive/Expressive Language, No Equipment, No Qualifier | Language Therapy |
PCS Character Analysis
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | F | Physical Rehabilitation and Diagnostic Audiology — Section F encompasses all rehabilitative and diagnostic services related to speech, language, hearing, and balance delivered by allied health professionals in the inpatient setting. |
| 2 | Section Qualifier | 0 | Rehabilitation — character 2 distinguishes therapeutic rehabilitation services (0) from diagnostic audiology services (1) within Section F; CPT 92507 maps to the rehabilitation qualifier because it is a therapeutic, not diagnostic, service. |
| 3 | Root Type | 6 | Speech Treatment — root type 6 covers all therapeutic procedures targeting speech, language, voice, communication, and auditory processing deficits; this is the direct PCS parallel to the full scope of conditions addressed by CPT 92507. |
| 4 | Body System/Region | Z | None — speech treatment in PCS does not require a specific body system/region value when the treatment is a generalized communication or language intervention not tied to a discrete anatomical structure; a body region value would be specified only if a specific anatomical target (e.g., laryngeal musculature) were the focus. |
| 5 | Type Qualifier | 1, 7, 8, or A | Specifies the category of speech treatment performed: 1 = Aphasia, 7 = Fluency, 8 = Motor Speech, A = Receptive/Expressive Language; the type qualifier must reflect the specific therapeutic focus documented in the SLP’s session note and must not be selected arbitrarily or as a catch-all. |
| 6 | Equipment | Z | None — when the SLP uses no specialized device equipment during treatment beyond standard clinical materials, Z (None) is the correct equipment character; if AAC devices, computer programs, or biofeedback instrumentation are used, an alternate equipment character applies. |
| 7 | Qualifier | Z | None — the qualifier character for speech treatment codes is Z (None) in standard individual SLP sessions; no procedural qualifier applies in the context of typical one-on-one communication disorder treatment. |
Root Operation Comparison
- Root Type 6 (Speech Treatment) encompasses the full scope of individual therapeutic interventions for communication disorders and is the PCS inpatient equivalent of CPT 92507; it must not be confused with Root Type 0 (Speech Assessment, codes beginning F00-), which maps to the SLP evaluation CPT codes 92521-92524 rather than to the treatment code 92507.
- Root Type 9 (Hearing Treatment) covers therapeutic services for auditory processing deficits and hearing rehabilitation and may partially overlap with 92507 when central auditory processing disorder (H93.25) is the documented treatment target; coders must select the root type that best matches the primary therapeutic focus documented in that session’s note rather than defaulting to Root Type 6 for all SLP-provided services.
- ICD-10-PCS codes in Section F are reported on the facility (UB-04) claim for inpatient stays and never appear on professional fee claims; understanding the PCS equivalent of 92507 is valuable for CDI alignment work and for ensuring consistency between the facility and professional claims when the SLP bills separately in a profee arrangement within the inpatient setting.
📝 Coding Examples
Example 1
Clinical Scenario: A 67-year-old Medicare patient with a history of left MCA ischemic stroke 8 months prior is seen in the outpatient speech therapy clinic. The patient presents with moderate non-fluent (Broca’s) aphasia as a late-effect sequela of the stroke, with documented deficits in verbal expression and word retrieval. The SLP conducts a 60-minute individual treatment session using Script Training and word-retrieval cueing hierarchies targeting improved functional verbal communication. This is the 14th treatment session under the current plan of care, and the SLP documents progress toward goal — improved naming accuracy from 40% to 65% over the past four sessions. The SLP is billing under Medicare Part B as the provider of record.
| Field | Code | Rationale |
|---|---|---|
| CPT | 92507-GN | 92507 is reported as one unit for the individual treatment session; -GN is mandatory for SLP services billed to Medicare Part B to identify the service as delivered under an SLP-established plan of care, and its omission results in claim denial regardless of medical necessity. |
| PDx | I69.320 | Aphasia following cerebral infarction is the correct primary diagnosis because the aphasia is a documented late-effect sequela of a prior ischemic stroke; R47.01 should not be used when a more specific I69 sequela code is available and supported by documentation, as defaulting to symptom codes is a specificity failure. |
Note
Modifier -KX should also be appended if this patient has reached the Medicare therapy financial cap threshold and the SLP has documented that the services are medically necessary and qualify for the exceptions process; failure to append -KX above the cap will result in claim denial even when -GN is correctly applied.
Example 2
Clinical Scenario: A 54-year-old inpatient being treated for an acute exacerbation of multiple sclerosis develops worsening dysarthria during the hospitalization. The consulting SLP formally evaluates the patient on Day 1, completing a behavioral assessment of motor speech function and speech fluency. Individual treatment targeting dysarthria begins on Day 2, with the SLP applying rate modification and intelligibility enhancement techniques consistent with LSVT LOUD principles. The evaluation is separately documented from the treatment, and each service is reported on the respective date of service. The SLP’s inpatient billing is submitted as a professional fee claim.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 92521 | Reported for the formal evaluation session on Day 1; 92521 represents a separately identifiable assessment of speech fluency and motor speech function that is clinically and documentarily distinct from the treatment session initiated the following day. |
| CPT 2 | 92507 | Reported for the individual treatment session on Day 2; dysarthria treatment falls within the full scope of 92507 and is not bundled with the Day 1 evaluation code because the two services occurred on different dates of service. |
| PDx | R47.1 | Dysarthria and anarthria is the appropriate primary diagnosis for the treatment session when the SLP is targeting motor speech intelligibility deficits; G35.D should be coded as a secondary diagnosis to document the underlying neurological etiology. |
Warning
Do not report 92521 and 92507 on the same date of service without clear documentation that both a formal evaluation and a distinct treatment session were separately performed; same-day evaluation and treatment coding is a high-frequency audit trigger, and the documentation must explicitly support the time, purpose, and medical necessity of each service independently to withstand payor and RAC review.
Example 3
Clinical Scenario: A 72-year-old SNF patient with a tracheostomy and history of laryngeal cancer resection presents with complete aphonia and is receiving individual SLP treatment targeting voice restoration. The SLP uses an electrolarynx device and resonant voice facilitation techniques to build functional alternative communication during a 45-minute individual session. The SLP documents the treatment session independently, noting that the patient demonstrated improved loudness and intelligibility with the electrolarynx device and is progressing toward the goal of functional communication with unfamiliar listeners. No AAC device programming is performed during this session — the session is purely therapeutic in nature.
| Field | Code | Rationale |
|---|---|---|
| CPT | 92507 | Reported as one unit for the individual voice restoration and communication treatment session; when both voice treatment and AAC strategy training occur within the same session, 92507 is the appropriate single code — unbundling 92507 and 92609 for the same session is not supported unless AAC device programming was a separately documented, distinct service clearly differentiated from the therapeutic treatment. |
| PDx | R49.1 | Aphonia is the appropriate primary diagnosis for a voice restoration session in which the patient has complete absence of functional phonation; the underlying oncologic etiology (laryngeal cancer history) should be coded as a secondary diagnosis using the appropriate personal history or sequela code to provide full clinical context on the claim. |
Global period reminder
CPT 92507 has a global period of 000, meaning no follow-up services are bundled beyond the day of the session itself, and each treatment encounter requires a new claim line and fresh documentation of medical necessity. In the SNF setting, verify that the qualifying stay criteria are satisfied and that the SLP is not billing Medicare Part B therapy concurrently with a Medicare Part A covered SNF stay without first confirming the correct billing pathway and consolidated billing rules; concurrent Part A and Part B therapy billing is a well-documented compliance risk in the SNF care setting.3
⚠️ Common Coding Pitfalls
- Pitfall 1 — Billing multiple units per session: CPT 92507 is not time-based and must be reported as a single unit per encounter; reporting two or more units of 92507 for a single session is overcoding regardless of session duration, will trigger payer claim edits, and is subject to recoupment upon audit.
- Pitfall 2 — Substituting 92507 for 92526 in dysphagia-only sessions: When the primary or sole purpose of the session is swallowing rehabilitation, 92526 is the correct code; using 92507 for swallowing treatment — whether for convenience or because of unfamiliarity with 92526 — is a coding error that misrepresents the service performed and is auditable.
- Pitfall 3 — Omitting or misassigning discipline-specific Medicare modifiers: For Medicare Part B claims, -GN must be appended to identify SLP-provided services; assigning -GP (physical therapy) or -GO (occupational therapy) when the treating clinician is an SLP is a modifier error that results in incorrect billing attribution and denial on audit.
- Pitfall 4 — Using R47.01 when an I69 sequela code applies: When aphasia is documented as a residual of a prior neurological event, the appropriate diagnosis code is from the I69 late-effect family, not R47.01; defaulting to symptom-level codes when etiology codes are available and supported is a specificity failure that undermines HCC capture, CDI metrics, and audit defensibility.
- Pitfall 5 — Reporting 92507 and 92508 for the same patient on the same date: These codes are mutually exclusive per session; a patient cannot receive both individual and group therapy for the same communication disorder in the same session, and dual reporting of both codes constitutes overcoding subject to claim denial and post-payment audit regardless of payer type.
- Pitfall 6 — Insufficient documentation of medical necessity for continued therapy: Claims for 92507 without documentation of measurable functional goals, objective evidence of patient progress, and a clear clinical rationale for continued skilled SLP intervention are vulnerable to medical necessity denials on audit; the treating SLP’s notes must support that skilled professional services — rather than a home program or maintenance protocol — are required for the patient to achieve or maintain function.4
📎 Sources
1. American Medical Association. CPT Professional Edition 2026. AMA Press; 2025. CPT code 92507, Special Otorhinolaryngologic Services. 2. Centers for Medicare & Medicaid Services. Medicare Physician Fee Schedule Final Rule 2025. CMS.gov; 2024. https://www.cms.gov/medicare/physician-fee-schedule 3. Centers for Medicare & Medicaid Services. Medicare Benefit Policy Manual, Chapter 15: Covered Medical and Other Health Services, §220 — Speech-Language Pathology Services. CMS.gov; revised 2024. https://www.cms.gov/regulations-and-guidance/guidance/manuals/downloads/bp102c15.pdf 4. American Speech-Language-Hearing Association. Billing and Reimbursement for Speech-Language Pathology Services. ASHA.org; 2025. https://www.asha.org/practice/reimbursement/ 5. Optum360. ICD-10-CM Expert for Physicians 2026. Optum360; 2025.