Crystal's Coder Hub🧬 ICD-10 CM J38.7 — Other Diseases of Larynx
Billable Code Confirmed
ICD-10 CM J38.7 is a valid, billable 5-character ICD-10-CM diagnosis code for FY2026. Characters 1-3 (J38) identify the category as Diseases of vocal cords and larynx, not elsewhere classified; character 4 (
.) is the decimal separator; and character 5 (7) identifies the “other diseases” subcategory grouping. No additional characters are required — this is a terminal code at the 5th character.
Non-Billable Parent Codes — Never Submit These
- ❌
J38— 3-character header — lacks subcategory specificity; does not identify the nature or type of laryngeal diseaseAlways submit J38.7 (all 5 characters including the decimal) when the clinical documentation supports a laryngeal disease that maps to the includes terms below (abscess, perichondritis, cellulitis, pachyderma, necrosis, ulcer, or disease NOS).
Clinical Context: "Other" Does Not Mean Vague
ICD-10 CM J38.7 captures a defined list of specific laryngeal pathologies — including abscess, perichondritis, cellulitis, necrosis, pachyderma, and ulcer — that do not have their own dedicated ICD-10-CM codes elsewhere in the J38 block. The word “other” here is an ICD-10 convention for residual specificity, not vague or unspecified disease. If documentation supports any of the official includes terms, J38.7 is the correct and specific code.
Code Classification
ICD-10-CM Diagnosis Code — wRVU, assistant-at-surgery payability, and global period fields are not applicable to diagnosis codes. For inpatient procedural crosswalk, see the ICD-10-PCS Crosswalk section. For outpatient procedure coding paired with this diagnosis, see the Commonly Associated CPT Codes section.
🔍 Code Description
ICD-10CM J38.7 classifies other diseases of the larynx — a heterogeneous group of inflammatory, infectious, structural, and degenerative laryngeal conditions that are not captured by a more specific code elsewhere in the ICD-10-CM classification.1,2 This code serves as the designated “residual” category within the J38 block for laryngeal pathology that doesn’t fit polyps (J38.1), edema (J38.4), spasm (J38.5), stenosis (J38.6), or vocal cord disease (J38.3).1
The larynx is a cartilaginous structure in the anterior neck composed of the thyroid, cricoid, and arytenoid cartilages, lined with mucosa and responsible for phonation and airway protection.3 Conditions classified here — such as perichondritis (infection of cartilage lining), laryngeal abscess, and laryngeal cellulitis — frequently involve the supraglottic or subglottic space and may threaten airway patency, particularly when deep neck space involvement is present.3
🌳 Code Tree / Hierarchy
J38 — Diseases of vocal cords and larynx, not elsewhere classified ❌ Non-billable
│
├── J38.0 — Paralysis of vocal cords and larynx ❌ Non-billable (requires laterality/degree)
│ ├── J38.00 — Paralysis of vocal cords and larynx, unspecified ✅ Billable
│ ├── J38.01 — Paralysis of vocal cords and larynx, unilateral ✅ Billable
│ └── J38.02 — Paralysis of vocal cords and larynx, bilateral ✅ Billable
│
├── J38.1 — Polyp of vocal cord and larynx ✅ Billable
├── J38.2 — Nodules of vocal cords ✅ Billable
├── J38.3 — Other diseases of vocal cords ✅ Billable
├── J38.4 — Edema of larynx ✅ Billable
├── J38.5 — Laryngeal spasm ✅ Billable
├── J38.6 — Stenosis of larynx ✅ Billable
│
└── J38.7 — Other diseases of larynx ◀ THIS CODE ✅ Billable
When to Choose J38.7 vs. Its Siblings
Use J38.7 specifically when the documented laryngeal condition maps to one of the official includes terms (abscess, cellulitis, perichondritis, necrosis, pachyderma, ulcer, disease NOS). If the documentation says “laryngeal edema,” use J38.4. If it says “laryngeal stenosis,” use J38.6. Never default to J38.7 as a catch-all — the includes list defines its boundaries.
✅ Includes
The following clinical terms and scenarios map to J38.7 when documented:1,2
- Abscess of larynx
- Cellulitis of larynx
- Disease of larynx NOS (when no more specific code applies)
- Necrosis of larynx
- Pachyderma of larynx (diffuse epithelial thickening of the laryngeal mucosa)
- Perichondritis of larynx (infection or inflammation of the laryngeal cartilage perichondrium)
- Ulcer of larynx (non-ulcerative laryngitis only — see Excludes1 for J04.0)
- Acquired laryngeal web
- Acquired laryngocele
- Chondritis of larynx
❌ Excludes
Excludes 1 — Cannot Be Coded Simultaneously with J38.7
| Code | Description | Note |
|---|---|---|
| P28.89 | Congenital laryngeal stridor (and other specified conditions of newborn) | This is a congenital/neonatal condition — mutually exclusive with J38.7, which captures acquired laryngeal diseases. Use P28.89 for stridor in a newborn with congenital cause. |
| J05.0 | Obstructive laryngitis, acute | This is a specific acute obstructive form (croup-like) — its own defined entity. Do not code J38.7 simultaneously; select the more specific J05.0 when obstructive acute laryngitis is documented. |
| J95.5 | Postprocedural subglottic stenosis | Etiology is postprocedural; mutually exclusive with J38.7 which covers non-postprocedural disease. |
| R06.1 | Stridor | Stridor is a symptom code; excluded from coding with J38.7 because a definitive laryngeal diagnosis (e.g., abscess, perichondritis) makes the symptom redundant per ICD-10-CM guideline I.C.21.c. |
| J04.0 | Ulcerative laryngitis | Ulcerative laryngitis has its own dedicated code. When the provider specifically documents “ulcerative laryngitis,” use J04.0, not J38.7 (even though “ulcer of larynx” is an includes term in J38.7 — the Excludes1 at J38.7 for J04.0 resolves this distinction). |
Excludes 1 Violation Risk
The most common pitfall is coding J38.7 alongside R06.1 (stridor) when stridor is simply the presenting symptom of the underlying laryngeal [abscess] or perichondritis. Per ICD-10-CM Section I.C, signs and symptoms integral to a confirmed diagnosis are not coded separately — once J38.7 is established, R06.1 should not be appended.
Excludes 2 — May Be Coded in Addition if Separately Present
| Code | Description | Note |
|---|---|---|
| None listed in FY2026 tabular | — | J38.7 carries no Excludes 2 notations; code any separately documented respiratory or infectious comorbidities per standard ICD-10-CM guidelines. |
📋 Clinical Overview
Laryngeal Condition Differentiation
Accurately selecting J38.7 vs. a related code requires understanding the clinical and microbiological distinctions of these laryngeal entities. The table below aids in code selection and CDI query targeting.
| Feature | J38.7 — Perichondritis/Abscess/Cellulitis | J38.4 — Laryngeal Edema | J38.6 — Laryngeal Stenosis |
|---|---|---|---|
| Primary Pathology | Infectious/inflammatory — bacterial or suppurative | Fluid accumulation in submucosal tissues | Narrowing of lumen, often fibrotic or cicatricial |
| Onset Pattern | Acute to subacute; may develop over days | Acute (allergic, angioedema, post-intubation) | Chronic or post-traumatic/post-intubation |
| Airway Threat | High — abscess may cause acute obstruction | High — can be rapid and life-threatening | Variable — depends on degree |
| Common Etiology | Group A Strep, Staph aureus, polymicrobial | Allergic, thermal, medication-induced | Prior intubation, radiation, trauma |
| Typical Treatment | IV antibiotics ± surgical drainage | Epinephrine, corticosteroids, airway management | Dilation, laser, surgical resection |
| CDI Trigger | ”Laryngeal inflammation” → query for abscess vs. cellulitis vs. edema | ”Airway swelling” → query for edema vs. angioedema (T78.3xx) | “Airway narrowing” → query for stenosis vs. spasm (J38.5) |
CDI Query Trigger — Specify the Laryngeal Pathology
When provider documentation states “laryngeal disease,” “laryngeal inflammation,” or “laryngeal infection” without further specificity, a CDI query is warranted to clarify whether the condition represents an abscess, cellulitis, perichondritis, ulcer, necrosis, or other named entity. This distinction does not affect DRG grouping for most admissions, but it does ensure complete clinical documentation and accurate code selection within J38.7’s includes terms.
Manifestations & Symptom Burden
Common presenting features and associated conditions coded alongside J38.7:
- Dysphonia / Hoarseness: Altered voice quality due to supraglottic or glottic mucosal involvement; document source to code separately if supported
- Odynophagia: Painful swallowing caused by perilaryngeal or supraglottic inflammation; integral to the diagnosis, typically not coded separately as R13.10
- Airway obstruction / Respiratory distress: If documented and clinically significant — code J98.09 (other diseases of bronchus) or J98.8 as appropriate; always evaluate for concurrent deep neck infection
- Fever / Systemic infection signs: If sepsis criteria are met, A41.9 or organism-specific sepsis code sequences as principal per Sepsis guideline I.C.1.d
- Immunosuppression / Diabetes mellitus: Frequently present as predisposing comorbidities — code underlying conditions (e.g., E11.9 for Type 2 DM) to support medical necessity and complexity
Coding Manifestations
When laryngeal abscess or perichondritis is present in a diabetic patient, always code the diabetes and confirm if it represents a diabetic complication (e.g., E11.69 — Type 2 DM with other specified complication) if the provider documents a causal relationship. This adds complexity to the encounter.
💰 HCC Risk Adjustment (CMS-HCC v28)
| Field | Detail |
|---|---|
| CMS-HCC Model Version | v28 (2024-2026 Implementation) |
| HCC Assignment | ❌ Not HCC-Mapped |
| HCC Category | N/A |
| RAF Coefficient | N/A |
J38.7 does not map to a payment HCC under CMS-HCC v28.4 This code was not included in the v28 payment model as laryngeal “other” diseases do not meet CMS criteria for chronic, high-cost predictive diagnoses used in Medicare Advantage risk scoring.
Not Applicable for Risk Adjustment
Because J38.7 is not HCC-mapped, it does not contribute to annual RAF score or resource utilization forecasting under Medicare Advantage. Coders working in an MA-heavy payer mix should not expect this code to trigger risk adjustment recapture workflows. Focus remains on accurate clinical capture for billing integrity and inpatient DRG optimization rather than HCC annual capture requirements.
🏥 MS-DRG Assignment
MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat5
| DRG | Title | Est. Relative Weight* |
|---|---|---|
| DRG 152 | Otitis Media and URI with MCC | ~0.80 - 0.95 |
| DRG 153 | Otitis Media and URI with CC | ~0.65 - 0.75 |
| DRG 154 | Otitis Media and URI without CC/MCC | ~0.55 - 0.65 |
Approximate. Verify against IPPS FY2026 Final Rule tables. Weights vary by hospital wage index and case complexity.
Sequencing and Surgical DRG Potential
J38.7 sequences as principal diagnosis when the laryngeal condition is the reason for admission. It does not function independently as a CC or MCC. If a surgical procedure is performed (e.g., laryngoscopy with biopsy, incision and drainage of laryngeal abscess, or tracheostomy for airway protection), the case will group into a surgical DRG under MDC 03, which carries significantly higher relative weights. Always review the OR procedure log to confirm whether a surgical grouper applies before defaulting to the medical DRG family.
🔗 Related ICD-10-CM Codes
J38 Block — Laryngeal and Vocal Cord Conditions
| Code | Description |
|---|---|
| J38.7 | Other diseases of larynx ← This Code |
| J38.4 | Edema of larynx |
| J38.5 | Laryngeal spasm |
| J38.6 | Stenosis of larynx |
| J38.1 | Polyp of vocal cord and larynx |
| J38.3 | Other diseases of vocal cords |
Infectious / Inflammatory Differentials
| Code | Description |
|---|---|
| J04.0 | Acute laryngitis (Excludes1 from J38.7) |
| J05.0 | Obstructive laryngitis, acute (Excludes1 from J38.7) |
| J06.9 | Acute upper respiratory infection, unspecified |
| L03.221 | Cellulitis of neck (if deep neck involvement extends beyond larynx) |
🛠️ Commonly Associated CPT Codes (Otolaryngology / ENT)
Outpatient and Profee Setting Context
J38.7 most commonly pairs with laryngoscopy CPT codes in the outpatient clinic or surgical suite setting. When the ENT performs both an E/M and a diagnostic or operative laryngoscopy on the same date, Modifier -25 on the E/M is required to separately report both services.
| CPT Code | Description | Profee Coding Notes (Modifier -26) |
|---|---|---|
| 31575 | Laryngoscopy, flexible; diagnostic | Primary diagnostic code for office flexible fiberoptic laryngoscopy; no Modifier -26 needed (global procedure) |
| 31505 | Laryngoscopy, indirect; diagnostic | Indirect mirror laryngoscopy; less common but still performed; Modifier -26 not applicable |
| 31540 | Laryngoscopy, direct operative; with excision of tumor or laryngocele | Use when operative laryngoscopy removes an acquired laryngocele (includes term of J38.7) |
| 31578 | Laryngoscopy, flexible; with ablation or destruction of lesion(s) | Applies when laser ablation or destruction of laryngeal ulcer or pachyderma lesion is performed |
| 31600 | Tracheostomy, planned (separate procedure) | May be required when laryngeal abscess (J38.7) causes acute airway obstruction requiring surgical airway; code separately |
| 99213 - 99215 | Office/outpatient E/M — established patient | Append Modifier -25 when performed same day as laryngoscopy for this diagnosis |
NCCI Bundling Considerations
- CPT 31505 (indirect laryngoscopy) billed on the same day as CPT 31575 (flexible laryngoscopy) is subject to NCCI bundling — only the more comprehensive procedure should be reported; Modifier -59 is insufficient to unbundle these without documentation of distinctly separate clinical indications.
- E/M codes (99213-99215) billed on the same day as 31575 require Modifier -25 on the E/M to reflect a significant, separately identifiable service above and beyond the pre/post-service work inherent to the procedure.
🔬 ICD-10-PCS Crosswalk (Inpatient Procedures)
When J38.7 is an inpatient diagnosis, these PCS codes may be relevant for associated inpatient procedures.5
| PCS Section | Body System | Root Operation | Clinical Application |
|---|---|---|---|
| 0 (Medical and Surgical) | C (Mouth and Throat) | 9 (Drainage) | Surgical drainage of laryngeal abscess, open approach — 0C958ZZ or with drainage device 0C9580Z |
| 0 (Medical and Surgical) | C (Mouth and Throat) | B (Excision) | Debridement/excision of necrotic or infected laryngeal tissue, endoscopic — 0CBJ8ZZ |
| 0 (Medical and Surgical) | B (Respiratory System) | 1 (Bypass) | Tracheostomy for acute airway protection when laryngeal abscess causes obstruction — 0B11 series codes |
| 3 (Administration) | E (Physiological Systems) | 0 (Introduction) | Topical or regional administration of antibiotic agents to respiratory tract — 3E0F705 |
💊 Coding Scenarios and Examples
Scenario 1 — Outpatient/Clinic: Laryngeal Perichondritis Presenting to ENT Office
Clinical Vignette: A 58-year-old male with Type 2 diabetes mellitus presents to an ENT clinic complaining of progressive hoarseness, throat pain, and neck tenderness over 5 days. Flexible fiberoptic laryngoscopy reveals supraglottic erythema with edema and induration overlying the left arytenoid cartilage, consistent with perichondritis. CT neck with contrast confirms perichondrial thickening without abscess formation. The ENT documents “perichondritis of the larynx” and initiates IV antibiotics with close follow-up.
CPT / Profee Codes:
- 99214-25 — Office E/M, established patient, moderate complexity (Modifier -25 required — significant, separately identifiable from procedure)
- 31575 — Flexible diagnostic laryngoscopy (Primary diagnostic procedure)
- CT neck interpretation if performed by same ENT — applicable radiology CPT with Modifier -26
ICD-10-CM:
- J38.7 — Perichondritis of larynx (Principal/primary diagnosis — maps via includes term)
- E11.9 — Type 2 diabetes mellitus without complications (Comorbidity supporting medical necessity)
Scenario 2 — Inpatient: Laryngeal Abscess with Airway Compromise
Clinical Vignette: A 44-year-old immunocompromised female is admitted through the ED with a 4-day history of worsening odynophagia, voice changes, and inspiratory stridor. Direct laryngoscopy under general anesthesia identifies a supraglottic laryngeal abscess with purulent exudate. Incision and drainage is performed; cultures grow Streptococcus viridans. She is admitted for IV antibiotics, airway monitoring, and pain management.
Principal Diagnosis:
- J38.7 — Abscess of larynx (Reason for admission — maps via includes term)
Secondary Diagnoses:
- D84.9 — Immunodeficiency, unspecified (Predisposing condition — comorbidity; query provider to specify type if possible)
- R06.1 — ⚠️ Do NOT code separately — stridor is integral to the laryngeal abscess diagnosis per ICD-10-CM Excludes1 at J38.7
MS-DRG Assignment: With the inpatient operative laryngoscopy (ICD-10-PCS drainage procedure), this case groups to a surgical DRG in MDC 03 rather than the medical Otitis Media/URI DRG family — review OR log to confirm PCS code assignment.
Scenario 3 — CDI Query: Vague “Laryngeal Inflammation” Documentation
Clinical Vignette: A 67-year-old male is admitted with fever, neck swelling, and voice changes. Admitting documentation from the hospitalist states “laryngeal inflammation, etiology unclear.” ENT consult documents “laryngeal mucosal thickening with submucosal induration — likely cellulitis versus early abscess — will manage with IV antibiotics and repeat laryngoscopy in 24-48 hours.” No definitive diagnosis is specified by discharge.
Action / Outcome: The coder cannot accurately distinguish between J38.7 (cellulitis or abscess of larynx) and J38.4 (laryngeal edema) or even J04.0 (acute laryngitis) based on “laryngeal inflammation” alone. A CDI query is indicated to clarify the nature and stage of the laryngeal process — specifically whether the ENT’s clinical impression of “cellulitis versus abscess” was confirmed or excluded prior to discharge.
Query Response: Provider updates discharge summary to confirm: “Final diagnosis: Cellulitis of larynx, treated with IV ampicillin-sulbactam, resolved without surgical intervention.”
Corrected ICD-10-CM Coding:
- J38.7 — Cellulitis of larynx (Now confirmed from CDI query; maps via official includes term)
- Z87.39 — Personal history of other endocrine, nutritional and metabolic diseases (only if applicable — code relevant comorbidities per documentation)
⚠️ Coding Pitfalls and Tips
| Pitfall or Tip | |
|---|---|
| ❌ | Don’t default to J38.9 or J39.8. J38.7 is the correct code for the includes-listed conditions of the larynx. J39.8 covers “other specified diseases of upper respiratory tract” — not larynx-specific. Always check whether the condition maps to a J38.x code first. |
| ❌ | Don’t code R06.1 (stridor) alongside J38.7. Stridor is an Excludes1 notation at J38.7 — if the definitive laryngeal diagnosis explains the stridor, do not append the symptom code. |
| ❌ | Don’t use J38.7 for postprocedural subglottic stenosis. J95.5 is the correct code when laryngeal/subglottic narrowing is a postprocedural complication. J38.7 is for non-postprocedural acquired laryngeal disease. |
| ✅ | Query for specificity within J38.7’s includes terms. If documentation says “laryngeal disease NOS,” query for the specific type — abscess, cellulitis, perichondritis, necrosis — to ensure the most accurate clinical capture, even though all map to the same code. This improves documentation quality and CDI integrity. |
| ✅ | Check for surgical DRG. If any inpatient operative procedure on the larynx occurred during the admission, the case likely groups to a surgical DRG with higher relative weight. Always review the ICD-10-PCS procedure codes before finalizing DRG assignment under MDC 03. |
| ✅ | Modifier -25 on same-day E/M with laryngoscopy. In the profee setting, when the ENT performs an office laryngoscopy and a significant E/M on the same day for J38.7, Modifier -25 must be appended to the E/M code — document a separately identifiable clinical decision-making process beyond the procedure. |
📚 Sources
-
CMS/NCHS. ICD-10-CM Official Guidelines for Coding and Reporting, FY2026. Centers for Medicare and Medicaid Services and the National Center for Health Statistics. https://www.cms.gov/medicare/coding-billing/icd-10-codes
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ICD-10-CM Tabular List FY2026 — J38.7, Includes and Excludes notations. ICD-10-CM, 10th ed., CMS/NCHS. Referenced via Unbound Medicine and AAPC Codify. https://www.unboundmedicine.com/icd/view/ICD-10-CM/887846/all/J38_7___Other_diseases_of_larynx
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Flint PW, et al. Cummings Otolaryngology: Head and Neck Surgery, 7th ed. Elsevier, 2021. (Source for laryngeal anatomy, perichondritis, and laryngeal abscess clinical overview.)
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CMS. 2025 Model Software/ICD-10 Mappings — CMS-HCC Model v28 ICD-10-CM Mappings. Centers for Medicare and Medicaid Services. https://www.cms.gov/medicare/payment/medicare-advantage-rates-statistics/risk-adjustment/2025-model-software/icd10-mappings
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CMS. IPPS Final Rule FY2026 — MS-DRG Definitions Manual v43. MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat. Centers for Medicare and Medicaid Services.
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AMA. CPT Professional Edition 2026. Surgery — Respiratory System / Larynx subsection (31505-31600). American Medical Association.