🧬 ICD-10 CM R41.844 — Frontal Lobe and Executive Function Deficit
Billable Code Confirmed
ICD-10 CM R41.844 is a fully specified 6-character code requiring no additional digits, making it valid and billable in all HIPAA transactions for FY2026¹. It falls under the “other specified cognitive deficit” subcategory, distinguishing it from broader unspecified cognitive impairment codes.
Non-Billable Parent Codes
R41.84 (Other specified cognitive deficit) is the non-billable parent and requires a 6th character to specify the exact deficit type. R41 (Other symptoms and signs involving cognitive functions and awareness) is even less specific and cannot be reported alone.
Clinical Context
ICD-10 CM R41.844 is selected when a patient demonstrates impaired planning, organization, or behavioral regulation consistent with frontal lobe dysfunction, without a confirmed cerebrovascular sequela already established².
Code Classification
ICD-10 CM R41.844 is a symptom/sign diagnosis code, not a procedure code, and guidelines require coding the underlying condition first when known, such as schizophrenia, with R41.844 reported as a secondary code adding functional detail.
🔍 Code Description
ICD-10 CM R41.844 captures impaired executive functioning, meaning difficulty with planning, organizing, sequencing tasks, or regulating impulses and behavior, findings classically associated with frontal lobe pathology³. Coding guidance instructs coders to code first the underlying condition if known, such as F20.9, schizophrenia, since R41.844 is intended to describe the functional deficit rather than replace the etiologic diagnosis. This code is distinct from the combination codes under category I69 that describe frontal lobe deficits specifically as a sequela of cerebrovascular disease, such as I69.31x**, frontal lobe** and executive function deficit following cerebral infarction.
Because R41.844 excludes all six cerebrovascular sequela combination codes, coders must confirm that a stroke, hemorrhage, or other cerebrovascular event has not already been identified as the cause before assigning this symptom code. When a psychiatric condition like schizophrenia is documented as the etiology, that diagnosis should be sequenced first, with R41.844 following to add specificity about the executive function impairment observed.
🌳 Code Tree / Hierarchy
R41 Other symptoms and signs involving cognitive functions and awareness ❌ Non-billable
│
├── R41.0 Disorientation, unspecified ✅ Billable
├── R41.4 Neurologic neglect syndrome ✅ Billable
│
├── R41.8 Other symptoms and signs involving cognitive functions and awareness ❌ Non-billable
│ │
│ ├── R41.81 Age-related cognitive decline ✅ Billable
│ ├── R41.82 Altered mental status, unspecified ✅ Billable
│ ├── R41.83 Borderline intellectual functioning ✅ Billable
│ │
│ ├── R41.84 Other specified cognitive deficit ❌ Non-billable
│ │ │
│ │ ├── R41.840 Attention and concentration deficit ✅ Billable
│ │ ├── R41.841 Cognitive communication deficit ✅ Billable
│ │ ├── R41.842 Visuospatial deficit ✅ Billable
│ │ ├── R41.843 Psychomotor deficit ✅ Billable
│ │ └── R41.844 Frontal lobe and executive function deficit ◀ THIS CODE ✅ Billable
│
└── R41.9 Unspecified symptoms and signs involving cognitive functions and awareness ✅ Billable
Six Excludes1 Codes Prevent Overlap With Stroke Sequelae
Tip
Always screen for a documented stroke, hemorrhage, or psychiatric etiology before finalizing R41.844, and remember to code first any known underlying condition per guideline instruction.
✅ Includes
- Impaired executive functioning
- Difficulty with planning, organizing, or regulating behavior
❌ Excludes
Excludes 1
- I69.31x- Frontal lobe and executive function deficit following cerebral infarction (I69.31) — this combination code is used instead of R41.844 once the deficit is confirmed as a sequela of ischemic stroke, making the two mutually exclusive.
- I69.11x -Frontal lobe and executive function deficit following nontraumatic intracerebral hemorrhage (I69.11) — this combination code applies when the executive dysfunction is confirmed as a hemorrhagic stroke sequela rather than an undetermined cause.
Danger
A common Excludes1 error is reporting R41.844 for a patient with a known stroke history when an I69 combination code already captures the executive function deficit as a sequela; only the more specific I69 code should be used in that scenario.
Excludes 2
None documented for this code.
📋 Clinical Overview
Symptom Code vs. Stroke Sequela Combination Codes
ICD-10 CM R41.844 is used when executive dysfunction is documented without a confirmed cerebrovascular etiology, while I69 combination codes are used once a stroke-related cause is established. Coding guidance additionally requires sequencing a known non-vascular underlying condition, such as schizophrenia, ahead of R41.844.
| Feature | R41.844 | R41.843 | R41.842 |
|---|---|---|---|
| Definitional Basis | Executive dysfunction without confirmed cerebrovascular etiology | Nonspecific slowing of thought and movement without confirmed etiology | Nonspecific spatial perception deficit without confirmed etiology |
| Typical Use | Neurology/psychiatry documentation pending workup or with known non-vascular etiology | Neurology/psychiatry documentation pending workup | Neurology/rehab documentation pending workup |
| Sequencing | Follows known underlying condition (e.g., schizophrenia) when documented | Usually secondary to underlying etiology when known | Usually secondary to underlying etiology when known |
Important
A CDI trigger arises when documentation states “poor planning and impulse control” without exploring stroke history or a psychiatric diagnosis; querying for etiology can shift both code selection and sequencing.
Manifestations & Symptom Burden
- Difficulty planning or sequencing multi-step tasks
- Impaired impulse control or behavioral regulation
- Reduced problem-solving flexibility
- Difficulty initiating or shifting between tasks
Tip
Manifestations should be documented with objective functional examples, such as failure to complete household tasks or impulsive decision-making, to strengthen medical necessity for neuropsychological testing or cognitive rehabilitation.
💰 HCC Risk Adjustment
ICD-10 CM R41.844 is not mapped to any CMS-HCC category and carries no direct RAF weight. Risk adjustment capture efforts should target the documented underlying condition, such as schizophrenia or a cerebrovascular sequela, rather than this symptom code alone.
🏥 MS-DRG Assignment
As a symptom code, R41.844 does not independently drive MDC or DRG assignment. When paired with a confirmed underlying diagnosis such as schizophrenia or a stroke sequela, that primary condition governs CC/MCC status and DRG weight, while R41.844 adds functional detail to the clinical picture.
🔗 Related ICD-10-CM Codes
Cognitive Deficit Family: R41.840, R41.841, R41.842, R41.843, R41.81, R41.82
Underlying Etiology Codes: F20.9, I69.31, I69.11, G31.84
🛠️ Commonly Associated CPT Codes
- 96116 — Neurobehavioral status exam, used when a formal cognitive assessment characterizes executive dysfunction⁵.
- 96125 — Standardized cognitive performance testing, applicable when objective executive function measures are administered.
- 97129 — Therapeutic interventions for cognitive function using dynamic activities; billed per 15-minute increment for executive skill retraining.
- 90791 — Psychiatric diagnostic evaluation without medical services, often used when ruling out a psychiatric etiology for the executive dysfunction.
NCCI Bundling Considerations
CPT 96116 and 96125 are generally not billed together on the same date of service for the same cognitive domain without documentation distinguishing separate, medically necessary evaluative components. Modifier -59 or -XU may apply if both services are legitimately distinct and separately documented.
🔬 ICD-10-PCS Crosswalk
Not applicable — R41.844 is a diagnosis code and does not have a direct ICD-10-PCS procedural equivalent, since PCS codes describe inpatient procedures rather than symptom-based diagnoses.
💊 Coding Scenarios and Examples
Scenario 1: A 45-year-old patient with a diagnosed schizophrenia is noted to have significant difficulty planning daily tasks and regulating impulsive behavior during a follow-up visit. Codes: F20.9 (schizophrenia, unspecified) primary, R41.844 secondary, following the “code first” instruction to sequence the known underlying condition ahead of the symptom code.
Scenario 2: A 70-year-old outpatient presents with new impaired planning and disinhibited behavior six months after an ischemic stroke. Code: I69.31x (frontal lobe and executive function deficit following cerebral infarction) as primary; R41.844 is not used here because the more specific combination code applies once the stroke etiology is confirmed.
Scenario 3: A patient with no psychiatric or neurologic history presents with new difficulty organizing tasks at work, with no identified cause after initial workup. Code: R41.844 alone, since no definitive underlying diagnosis has been established. A CDI note should flag this for follow-up once neuropsychological testing results are available.
⚠️ Coding Pitfalls and Tips
- Do not report R41.844 when a confirmed stroke-related combination code such as I69.31x already captures the executive function deficit as a sequela.
- Always code first a known underlying condition, such as F20.9, before sequencing R41.844 as a secondary code.
- Confirm documentation specifies functional impact of the executive dysfunction, such as impaired planning or impulse control, rather than vague terms like “not thinking clearly.”
- Query providers when executive dysfunction is charted without exploring psychiatric or cerebrovascular causes, since this affects both sequencing and code selection.
Sources: icd10data.com¹, AAPC ICD-10-CM code lookup²⁴, unboundmedicine.com ICD-10-CM 2026³, findacode.com/CMS MS-DRG v40.0 Definitions Manual⁵