🧬 ICD-10 CM I69.318 — Other Symptoms and Signs Involving Cognitive Functions Following Cerebral Infarction
Billable Code Confirmed
ICD-10 CM I69.318 is a fully specified 6-character ICD-10-CM code that is valid and billable for FY2026. The 6th character “8” within the I69.31x subcategory designates cognitive deficits following cerebral infarction that do not fall into any of the specifically enumerated sibling code categories (attention, memory, visuospatial, psychomotor, executive function, or social/emotional). It is the “other specified” code of the I69.31x family — used when the provider documents a named cognitive deficit that is distinct from those covered by I69.310-I69.315 but is more specific than the unspecified I69.319.
Non-Billable Parent Codes
I69 (Sequelae of cerebrovascular disease) is a non-billable category header and cannot be submitted on a claim. I69.3 (Sequelae of cerebral infarction) is a non-billable subcategory lacking specificity for the type of residual deficit. I69.31 (Cognitive deficits following cerebral infarction) is also non-billable because it does not identify the specific cognitive domain. All three parent codes require further specification before claim submission — I69.318 is the appropriate endpoint when a named “other” cognitive symptom is documented.
Clinical Context
ICD-10 CM I69.318 is the correct code when the provider documents a post-stroke cognitive deficit that is real, named, and clinically established — but which does not map to any of the specifically enumerated I69.31x sibling codes. Classic clinical examples include anosognosia (lack of awareness of one’s own stroke-related deficits), apraxia (inability to perform learned purposeful movements despite intact motor function), agnosia (failure to recognize objects, faces, or sounds despite intact sensory function), and cognitive-perceptual integration disorders that follow cerebral infarction. The key distinction from I69.319 (unspecified) is that I69.318 implies a named, identifiable deficit that has been documented by the provider — it is not a fallback for documentation that simply says “cognitive impairment” without elaboration.
Code Classification
ICD-10 CM I69.318 is a diagnosis code only — it classifies a specific residual cognitive sequela of a prior cerebral infarction and does not capture the acute infarction itself. Per ICD-10-CM guideline I.C.9, the I69.x category does not use the 7th character “S” sequela convention applied in injury coding; the sequela concept is built into the I69.x structure itself. Never assign I69.318 during the acute cerebral infarction encounter — the I63.xx code governs the acute phase, and I69.318 is reserved for subsequent encounters where only the residual cognitive deficit is being evaluated or managed.
🔍 Code Description
ICD-10 CM I69.318 classifies post-stroke cognitive deficits that are specifically named by the treating provider but do not correspond to any of the six explicitly enumerated cognitive domain codes in the I69.31x subcategory family (attention/concentration, memory, visuospatial/neglect, psychomotor, frontal/executive, or social/emotional). This is the “other specified” slot in an intentionally granular classification system — its use signals that the provider has identified and documented a recognizable cognitive syndrome, but the ICD-10-CM classification does not have a dedicated code for it at the current level of specificity. Clinically important examples include anosognosia (unawareness of one’s own deficits, occurring in an estimated 10-18% of post-stroke patients, particularly after right hemisphere infarction), apraxia (ideomotor or ideational), object agnosia, prosopagnosia (failure to recognize familiar faces), and simultagnosia.
The critical distinction within the I69.31x family is between I69.318 (other specified) and I69.319 (unspecified) — I69.318 should be used when the clinician’s documentation identifies a specific cognitive syndrome by name, even if that syndrome lacks a dedicated ICD-10-CM slot, while I69.319 is reserved for documentation that acknowledges cognitive involvement without naming the domain or syndrome. CDI queries should aim to elevate I69.319 assignments to I69.318 or to a more specific sibling code whenever the clinical record — including neuropsychology reports, PM&R consult notes, occupational therapy assessments, and neurology evaluations — contains domain-specific or syndrome-specific language. Multiple I69.31x codes may be reported simultaneously when the provider has documented more than one distinct cognitive sequela — I69.318 for anosognosia and I69.312 for spatial neglect following a right MCA infarction is a valid and common combination, for example.
🌳 Code Tree / Hierarchy
I69 — Sequelae of cerebrovascular disease ❌ Non-billable
│
├── I69.0 — Sequelae of nontraumatic subarachnoid hemorrhage ❌ Non-billable
├── I69.1 — Sequelae of nontraumatic intracerebral hemorrhage ❌ Non-billable
├── I69.2 — Sequelae of other nontraumatic intracranial hemorrhage ❌ Non-billable
│
├── I69.3 — Sequelae of cerebral infarction ❌ Non-billable
│ │
│ ├── I69.30 — Unspecified sequelae of cerebral infarction ✅ Billable
│ │
│ ├── I69.31 — Cognitive deficits following cerebral infarction ❌ Non-billable
│ │ │
│ │ ├── I69.310 — Attention and concentration deficit following cerebral infarction ✅ Billable
│ │ ├── I69.311 — Memory deficit following cerebral infarction ✅ Billable
│ │ ├── I69.312 — Visuospatial deficit and spatial neglect following cerebral infarction ✅ Billable
│ │ ├── I69.313 — Psychomotor deficit following cerebral infarction ✅ Billable
│ │ ├── I69.314 — Frontal lobe and executive function deficit following cerebral infarction ✅ Billable
│ │ ├── I69.315 — Cognitive social or emotional deficit following cerebral infarction ✅ Billable
│ │ ├── I69.318 — Other symptoms and signs involving cognitive functions following cerebral infarction ◀ THIS CODE ✅ Billable
│ │ └── I69.319 — Unspecified symptoms and signs involving cognitive functions following cerebral infarction ✅ Billable
│ │
│ ├── I69.32 — Speech and language deficits following cerebral infarction ❌ Non-billable
│ ├── I69.33 — Monoplegia of upper limb following cerebral infarction ❌ Non-billable
│ ├── I69.34 — Monoplegia of lower limb following cerebral infarction ❌ Non-billable
│ ├── I69.35 — Hemiplegia and hemiparesis following cerebral infarction ❌ Non-billable
│ └── I69.39 — Other sequelae of cerebral infarction ❌ Non-billable
│
└── I69.8 — Sequelae of other cerebrovascular diseases ❌ Non-billable
I69.318 vs. I69.319: The "Other Specified" vs. "Unspecified" Distinction
ICD-10 CM I69.318 (other specified) and I69.319 (unspecified) are sibling codes that look similar but are fundamentally different in coding intent. I69.318 signals a named cognitive deficit documented in the record that doesn’t fit any enumerated sibling — it rewards documentation specificity. I69.319 is the fallback when the provider acknowledges cognitive involvement but provides no domain or syndrome identification. Coders should never assign I69.319 when the provider’s note or a consultant’s report names a specific syndrome like anosognosia or apraxia; that language supports I69.318 and represents better documentation practice.
Tip
ICD-10 CM I69.318 may be coded simultaneously with any or all of its I69.31x sibling codes when multiple distinct cognitive deficits are each independently documented. A patient with post-right-MCA-infarction anosognosia (I69.318) and visuospatial neglect ([[I69.312]]) and attention deficit (I69.310]) can and should carry all three codes if the provider or neuropsychologist documents each deficit separately — this is not duplicate coding.
✅ Includes
- Anosognosia following cerebral infarction — Unawareness or denial of one’s own stroke-related neurological deficits; more common following right hemispheric infarction; documented by the neurologist or PM&R physician as a named cognitive behavioral finding.
- Apraxia following cerebral infarction (NEC) — Inability to perform learned, purposeful motor acts despite intact motor and sensory function; includes ideomotor apraxia, ideational apraxia, and limb-kinetic apraxia when documented as sequela of a prior infarction and not captured by a more specific code elsewhere.
- Agnosia following cerebral infarction — Failure to recognize objects (visual agnosia), faces (prosopagnosia), or sounds (auditory agnosia) despite intact primary sensory function; a named post-stroke cognitive syndrome supportable under I69.318.
- Other named cognitive-perceptual deficits following cerebral infarction NEC — Any provider-documented, clinically named post-stroke cognitive syndrome that is distinct from attention, memory, visuospatial/neglect, psychomotor, executive function, or social/emotional domains.
❌ Excludes
Excludes 1
- ICD-10 CM Z86.73 — Personal history of cerebral infarction without residual deficit: Hard Excludes 1 — if the provider has documented that the patient had a prior cerebral infarction with complete recovery and no remaining deficits, Z86.73 is correct and I69.318 must not be assigned. The determination hinges entirely on whether a residual cognitive deficit is currently present, active, and documented; when any named cognitive residual exists, Z86.73 is excluded and I69.318 (or a more specific sibling code) is appropriate.
- S06.- — Sequelae of traumatic intracranial injury: Cognitive deficits including anosognosia, apraxia, or agnosia following traumatic brain injury are coded using the S06.x category with 7th character “S” for sequelae — they are never assigned to I69.318 regardless of clinical similarity. When a patient has both a TBI history and a stroke history, the treating provider must explicitly attribute the cognitive deficit to one etiology before the coder can assign the appropriate code.
Danger
The most dangerous Excludes 1 error in this code’s context is assigning I69.318 to a post-TBI patient whose cognitive deficits were incorrectly attributed to a stroke in the problem list or discharge summary. Always verify the etiology — was the patient’s cognitive syndrome present before or after the infarction? Is there an intervening TBI? — before assigning I69.318. This error is particularly common in elderly patients with both cerebrovascular disease and falls/head trauma history, and it can result in claim denials and compliance flags under medical necessity review.
Excludes 2
There are no Excludes 2 notations specific to I69.318 in the ICD-10-CM Tabular List. Per ICD-10-CM guideline I.C.9, when a patient has a pre-existing cognitive sequela (I69.318) and subsequently suffers a new acute cerebral infarction (I63.xx), the acute code sequences as principal and I69.318 may be reported as additional to represent the pre-existing deficit from a prior, separate infarction event — these are not the same condition and do not mutually exclude each other.
📋 Clinical Overview
Navigating the I69.31x Family: When Does I69.318 Apply?
Accurate use of I69.318 requires systematic elimination — the coder and CDI specialist should first check whether the documented cognitive deficit maps to any of the six enumerated sibling codes before defaulting to I69.318. If the provider documents “anosognosia,” “apraxia,” or “agnosia” — none of which have dedicated sibling codes — I69.318 is the correct selection. If the documentation is entirely nonspecific (“cognitive impairment”), I69.319 (unspecified) is the fallback, not I69.318. The goal of CDI queries in this space is always to move nonspecific documentation toward named syndromes.
| Cognitive Deficit | ICD-10-CM Code | Notes | |
|---|---|---|---|
| Attention and concentration deficit | I69.310 | Specific sibling code exists — use this, not I69.318 | |
| Memory deficit | I69.311 | Specific sibling code exists — use this, not I69.318 | |
| Visuospatial deficit / spatial neglect | I69.312 | Specific sibling code exists — use this, not I69.318 | |
| Psychomotor deficit | I69.313 | Specific sibling code exists — use this, not I69.318 | |
| Frontal lobe / executive function deficit | I69.314 | Specific sibling code exists — use this, not I69.318 | |
| Cognitive social or emotional deficit | I69.315 | Specific sibling code exists — use this, not I69.318 | |
| Anosognosia | I69.318 | No specific sibling — I69.318 is correct | |
| Apraxia (post-infarction) | I69.318 | No specific sibling — I69.318 is correct | |
| Agnosia / prosopagnosia | I69.318 | No specific sibling — I69.318 is correct | |
| Named cognitive NEC | I69.318 | Named but unclassifiable to I69.310-I69.315 | |
| Unspecified cognitive impairment | I69.319 | No domain named — last resort only |
Important
When the provider documents anosognosia after a right MCA infarction, it is almost always co-occurring with hemispatial neglect — which has its own specific code (I69.312). Both I69.318 (for anosognosia) and I69.312 (for neglect) should be coded simultaneously when both are documented. CDI teams working in stroke rehabilitation should proactively query for anosognosia in right hemisphere stroke patients, as it significantly impacts rehabilitation potential, family education needs, and safety planning — and is frequently observed but under-documented.
Manifestations & Symptom Burden
- Anosognosia (I69.318) — Affects approximately 10-18% of stroke survivors and is more prevalent after right parietal infarction; directly impairs rehabilitation engagement because the patient may refuse therapy, believing no deficit exists.
- Apraxia — Ideomotor apraxia impairs learned motor sequencing (e.g., waving, using utensils) and significantly complicates occupational therapy; ideational apraxia impairs object use comprehension — both are post-stroke cognitive sequelae codeable under I69.318 when documented.
- Spatial neglect with anosognosia (I69.312 + I69.318) — These two deficits co-occur with high frequency following right hemisphere infarction and together represent a profoundly disabling rehabilitation barrier; code both when both are explicitly documented.
- Post-stroke depression (F32.1) — Complicates the cognitive picture in 30-35% of stroke survivors and is separately codeable per ICD-10-CM convention; it is a CC trigger that can elevate DRG to 056 when documented and coded.
- Dysphagia (I69.391) — A frequently co-occurring motor sequela of cerebral infarction that, when documented alongside I69.318, represents a separately codeable condition per the ICD-10-CM Tabular instruction at I69.3.
Tip
Multiple I69.31x codes are explicitly supported when each cognitive domain or syndrome is independently documented — do not limit coding to a single I69.31x code when the record demonstrates multiple deficits. The neuropsychological evaluation report and the PM&R discharge summary are the two most documentation-rich sources for identifying all codeable cognitive sequelae. Review both as standard CDI practice in every post-stroke inpatient rehabilitation admission.
💰 HCC Risk Adjustment
| HCC Model | Category | Label | Community Non-Dual Aged RAF |
|---|---|---|---|
| CMS-HCC V28 (PY2026) | None | Not HCC-Mapped | 0 |
| CMS-HCC V24 (legacy) | None | Not HCC-Mapped | 0 |
ICD-10 CM I69.318 does not map to any HCC category under CMS-HCC V28 for PY2026 and carries a zero RAF contribution. The full I69.31x cognitive sequelae family is non-HCC-mapped; the only I69.x codes that do carry HCC mapping under V28 are specific hemiplegia/hemiparesis codes (I69.35x). The RAF capture for stroke patients must be driven through the acute I63.xx infarction code submitted during the acute encounter — confirm that this code was submitted within the current plan year for any Medicare Advantage patient before concluding that the stroke-related HCC is represented. Despite zero RAF, I69.318 supports quality reporting, care coordination, rehab authorization, and is part of a complete and defensible medical record.
🏥 MS-DRG Assignment
| DRG | Title | Trigger Condition |
|---|---|---|
| DRG 056 | Degenerative Nervous System Disorders with MCC | I69.318 as principal + documented MCC |
| DRG 057 | Degenerative Nervous System Disorders without MCC | I69.318 as principal, no qualifying MCC |
| DRG 064 | Intracranial Hemorrhage or Cerebral Infarction with MCC | When acute I63.xx is principal instead |
| DRG 065 | Intracranial Hemorrhage or Cerebral Infarction with CC | When acute I63.xx is principal instead |
| DRG 066 | Intracranial Hemorrhage or Cerebral Infarction without CC/MCC | When acute I63.xx is principal instead |
When I69.318 is the principal diagnosis (post-acute admission for evaluation or rehabilitation of a named cognitive sequela), the case groups to MDC 01 DRG 056/057 based on MCC presence. I69.318 itself carries no MCC/CC weight, so the DRG tier depends entirely on what is documented and coded alongside it — post-stroke depression (F32.xx), respiratory complications, sepsis, or advanced pressure ulcer are the most common MCC triggers in this population. When an acute cerebral infarction (I63.xx) is the principal diagnosis of the current admission, I69.318 may appear as additional (representing a pre-existing sequela from a prior separate infarction) but will not drive DRG assignment. Proper sequencing — acute I63.xx as principal during the infarction stay, I69.318 as principal post-acute — is one of the most audited sequencing decisions in stroke coding and should be explicitly addressed in facility CDI policy.
🔗 Related ICD-10-CM Codes
I69.31x Cognitive Sequelae of Cerebral Infarction Family
- I69.310 — Attention and concentration deficit following cerebral infarction
- I69.311 — Memory deficit following cerebral infarction
- I69.312 — Visuospatial deficit and spatial neglect following cerebral infarction
- I69.313 — Psychomotor deficit following cerebral infarction
- I69.314 — Frontal lobe and executive function deficit following cerebral infarction
- I69.315 — Cognitive social or emotional deficit following cerebral infarction
- I69.319 — Unspecified symptoms and signs involving cognitive functions following cerebral infarction (use only when no domain or syndrome is named)
- I69.818 — Other symptoms and signs involving cognitive functions following other cerebrovascular disease (parallel code for non-infarction etiology)
Commonly Co-Occurring Sequelae and Comorbidity Codes
- I69.312 — Visuospatial deficit and spatial neglect following cerebral infarction (frequent co-code with anosognosia post-right-MCA-infarction)
- I69.314 — Frontal lobe and executive function deficit following cerebral infarction (may co-occur with apraxia in frontal lobe infarction)
- I69.391 — Dysphagia following cerebral infarction
- I69.320 — Aphasia following cerebral infarction
- I69.351 — Hemiplegia and hemiparesis following cerebral infarction, right dominant side
- F32.1 — Major depressive disorder, single episode, moderate (post-stroke depression — CC)
- Z86.73 — Personal history of cerebral infarction without residual deficit (use instead when no deficit is present)
🛠️ Commonly Associated CPT Codes
- 96116 — Neurobehavioral status examination, first hour: Primary profee CPT for physician or neuropsychologist cognitive assessment; when testing identifies anosognosia, apraxia, or agnosia as named syndromes, the written report directly supports I69.318 as the specific post-stroke cognitive code over I69.319.
- 96132 — Neuropsychological testing evaluation services by psychologist or physician, first hour: Full neuropsychological battery by a licensed neuropsychologist that identifies specific cognitive syndromes (including apraxia or agnosia) beyond what a brief bedside exam captures; the interpretation report is the strongest I69.318 documentation support.
- 97129 — Therapeutic interventions focusing on cognitive function, initial 15 minutes: SLP or OT cognitive rehabilitation targeting the specific deficit (e.g., apraxia treatment, anosognosia awareness training); requires functional, deficit-specific documentation and supports medical necessity for continued inpatient rehabilitation.
- 97535 — Self-care/home management training, each 15 minutes: Particularly relevant for patients with apraxia or anosognosia where ADL retraining and safety awareness education are central rehabilitation goals; documentation must reflect the specific cognitive barrier driving the need for this service.
- 99233 — Subsequent hospital inpatient care, high complexity: Managing a post-stroke patient with named cognitive sequelae (anosognosia, apraxia) alongside motor and speech deficits consistently supports high MDM complexity; document all active conditions being managed, relevant data reviewed, and risk of morbidity or mortality.
NCCI Bundling Considerations
Neurobehavioral status examination (96116) and neuropsychological testing evaluation (96132) represent distinct service types but are subject to NCCI edits when billed same-day by the same provider — 96116 is a physician/clinician exam while 96132 is a psychologist-level battery, and pairing them same-day may trigger a bundling edit without appropriate modifier support. Cognitive rehabilitation codes (97129, 97130) billed alongside communication treatment codes (92507) on the same date require review of NCCI edits and modifier applicability. Confirm scope-of-practice designation for the billing provider before selecting CPT codes, as neuropsychologists, SLPs, OTs, and physicians each have defined code sets.
🔬 ICD-10-PCS Crosswalk
- F07Z0ZZ — Speech treatment of brain using audiovisual equipment, no qualifier: SLP cognitive-linguistic rehabilitation targeting apraxia, agnosia, or other named cognitive-perceptual deficits in the inpatient rehabilitation setting; section F (Physical Rehabilitation and Diagnostic Audiology), root operation “Speech Treatment.”
- F06Z0ZZ — Caregiver training in activities, no qualifier: Occupational therapy caregiver training for family members of post-stroke patients with anosognosia, where the patient’s lack of insight requires family-centered intervention; coded in section F when delivered in the inpatient rehab setting.
- GZ3ZZZZ — Group psychotherapy: Inpatient group psychological/behavioral intervention for post-stroke adjustment, cognitive awareness programming, or behavioral sequelae management; section G (Mental Health), root operation “Group Psychotherapy.”
- GZ2ZZZZ — Biofeedback: Inpatient biofeedback-based cognitive rehabilitation when used in the psychiatric or rehabilitation setting to support awareness retraining in anosognosia or attention restoration in other post-stroke cognitive deficits; section G, root operation “Biofeedback.”
💊 Coding Scenarios and Examples
Scenario 1 — Right MCA Infarction with Anosognosia and Neglect A 74-year-old female is admitted to inpatient rehabilitation 3 weeks following a right middle cerebral artery infarction. PM&R documents “left hemispatial neglect and anosognosia — patient denies any deficits and actively resists therapy.” Neuropsychology confirms anosognosia on formal assessment. OT documents spatial neglect on structured testing.
- Correct coding (principal → additional): I69.318 (anosognosia — other named cognitive deficit; principal reason for rehab) → I69.312 (visuospatial deficit and spatial neglect following cerebral infarction) → I69.351 (hemiplegia/hemiparesis, left non-dominant side, if documented)
- Sequencing: I69.318 sequences as principal (or co-equal with I69.312) based on which deficit is chiefly driving the rehabilitation admission; both are additional to I69.351 if motor deficit is the primary reason for admission.
- CDI note: Query the PM&R attending to explicitly name “anosognosia” in the discharge summary — “denial of deficits” or “lack of insight” alone may not satisfy payer documentation standards without physician use of the clinical term.
Scenario 2 — Left Hemisphere Infarction with Limb Apraxia A 68-year-old male admitted for rehabilitation following a left hemisphere cerebral infarction has documented ideomotor apraxia on OT evaluation. The neurologist’s consult note states “post-stroke ideomotor apraxia limiting ADL independence, attributed to prior left frontal infarction.” Aphasia is also present and documented.
- Correct coding: I69.318 (ideomotor apraxia following cerebral infarction — principal named deficit driving OT rehabilitation) → I69.320 (aphasia following cerebral infarction — co-occurring language sequela)
- Sequencing: I69.318 sequences first if apraxia is the primary rehabilitation focus; I69.320 is co-equal or additional depending on the UHDDS principal diagnosis criteria for the specific admission.
- CDI note: Apraxia and aphasia can co-occur in left hemisphere infarction — both codes are independently valid and should be coded when both are documented; do not collapse them into a single sequela code.
Scenario 3 — New Acute Stroke in a Patient with Pre-Existing Post-Stroke Agnosia A 79-year-old male with a known history of prior right occipital cerebral infarction with documented visual object agnosia is admitted acutely with a new left MCA ischemic stroke confirmed on MRI DWI. The H&P documents his prior agnosia as a pre-existing condition still present on admission.
- Correct coding: I63.50 (Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral artery — new acute infarction; principal) → I69.318 (pre-existing agnosia from prior occipital infarction — additional; POA = Y)
- Sequencing: Acute I63.xx is always principal during an active acute infarction admission; I69.318 is additional representing the pre-existing cognitive sequela from a separate prior event. POA indicator Y applies to I69.318 since the agnosia was present on admission.
- CDI note: The H&P must clearly link the agnosia to the prior occipital infarction and differentiate it from any new deficits attributable to the current left MCA event; if the agnosia may be worsening due to the new stroke, query the attending for clarity before assigning both I69.318 and the acute I63.xx code as co-existing.
⚠️ Coding Pitfalls and Tips
- ICD-10 CM I69.318 is “other specified” — it requires a named syndrome. Do not use I69.318 when documentation says only “cognitive impairment,” “confusion,” or “cognitive deficit NOS” — those fall to I69.319 (unspecified). I69.319] requires that the provider name a specific cognitive syndrome (anosognosia, apraxia, agnosia, etc.) that simply doesn’t have its own dedicated I69.31x slot.
- Never use I69.318 during the acute cerebral infarction encounter. This is a sequela code exclusively for post-acute use. During the active infarction admission, I63.xx is the principal diagnosis code; I69.319] represents residual deficits from a prior, separate infarction only.
- ICD-10 CM Z86.73 and I69.318 are mutually exclusive. If the record says “no residual deficits from prior stroke,” Z86.73 is correct and I69.319] must not appear. If any named residual cognitive symptom is present, Z86.73 is excluded. Query the provider whenever ambiguity exists between these two codes.
- TBI cognitive sequelae are never coded with I69.318. Apraxia or anosognosia following traumatic brain injury are S06.x with 7th character “S” for sequela — even if clinically identical to post-stroke deficits. Etiology matters for code assignment and cannot be interchanged.
- Anosognosia is drastically undercoded. Right hemisphere stroke patients with anosognosia are routinely documented with terms like “poor insight,” “doesn’t recognize deficits,” or “refuses therapy” — none of which explicitly triggers a CDI query for I69.319]. Facility CDI policy should include right-hemisphere-infarction admissions as a standing query trigger for anosognosia documentation.
- ICD-10 CM I69.318 and I69.319 are not interchangeable. Some coders default to I69.319 as a “safer” less specific choice — this is incorrect coding practice. Use the most specific code that the documentation supports; I69.319] reflects a named deficit and is always preferable to I69.319 when the provider has named a specific syndrome.