🧬 ICD-10 CM I69.152 — Hemiplegia and Hemiparesis Following Nontraumatic Intracerebral Hemorrhage Affecting Left Dominant Side
Billable Code Confirmed
ICD-10 CM I69.152 is a fully billable, 7-character ICD-10-CM code valid for FY2026 (October 1, 2025 - September 30, 2026). The code captures residual hemiplegia or hemiparesis of the left dominant side as a sequela of a prior nontraumatic intracerebral hemorrhage (brain bleed) — it is not used during the acute stroke encounter. This code is HCC-mapped under CMS-HCC v28 to HCC 103 (Hemiplegia/Hemiparesis), making it a high-priority code for both inpatient facility coding and Medicare Advantage risk adjustment.
Non-Billable Parent Codes
I69 (Sequelae of cerebrovascular disease) is a non-billable category-level code that cannot be submitted on a claim — it must be further specified by event type and deficit type. I69.1 (Sequelae of nontraumatic intracerebral hemorrhage) is the non-billable subcategory requiring the specific deficit type character. I69.15 (Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage) is also non-billable — the laterality and dominance character “2” in I69.152 is required for a valid, billable claim submission.
Clinical Context
ICD-10 CM I69.152 applies only in the post-acute setting — during the acute hospitalization for the intracerebral hemorrhage itself, the hemiplegia is coded with G81.xx alongside the I61.x acute event code, not with I69.152. The “left dominant” designation is critical: most humans are right-hand dominant, so the left side is typically non-dominant — I69.152 (left dominant) applies to the less common left-handed/left-dominant patient population, and per ICD-10-CM guideline I.C.9.d.1, when the left side is affected but dominance is not documented, the default is non-dominant (I69.154), not dominant. Do not assign I69.152 unless the physician explicitly documents the patient as left-hand dominant or the documentation otherwise confirms left-side dominance.
Code Classification
ICD-10 CM I69.152 is a diagnosis code under Chapter 9, Diseases of the Circulatory System (I00-I99), subcategory I69.1 (Sequelae of nontraumatic intracerebral hemorrhage). It is a combination sequela code that simultaneously captures both the residual neurological deficit (hemiplegia/hemiparesis) and the causative prior event (nontraumatic intracerebral hemorrhage) in a single code — no additional causative stroke code is needed when coding only the sequelae at a post-acute encounter.
🔍 Code Description
ICD-10 CM I69.152 is a sequelae code used to report the residual neurological motor deficit of hemiplegia or hemiparesis on the left dominant side that persists as a late effect of a prior nontraumatic intracerebral hemorrhage (ICH).1,2 “Nontraumatic” means the hemorrhage was caused by a spontaneous pathological process — most commonly hypertension, cerebral amyloid angiopathy, or arteriovenous malformation — as opposed to a traumatic brain injury, which would fall under S06.-.2 Hemiplegia denotes complete or near-complete paralysis on one side of the body, while hemiparesis describes partial weakness — the ICD-10-CM classification does not distinguish between the two for code assignment purposes in this subcategory, meaning both conditions are captured by the same code regardless of severity level.3,4 The “left dominant” qualifier identifies both the laterality (left side of body affected) and the handedness of the patient (left-handed/left-dominant), which carries functional significance because dominant-side deficits typically impose greater impairment on activities of daily living, fine motor tasks, and communication than non-dominant side involvement.3 This specificity also drives risk adjustment and clinical resource utilization expectations, as dominant-side hemiplegia is recognized as more functionally burdensome in clinical and payer frameworks.
The causal chain embedded in I69.152 requires that the treating physician explicitly establish a link between the residual hemiplegia/hemiparesis and the prior intracerebral hemorrhage — the code cannot be assigned based solely on the coder’s assumption of causality.1,2 When the patient has both a current stroke (acute I61.x encounter) and residual deficits from a prior stroke, ICD-10-CM guidelines allow simultaneous coding of both the acute event and I69.152 for the separate old deficit, but this requires clear physician documentation distinguishing the two events.1 Category I69 codes may be used alongside I60-I67 codes when the patient has a current cerebrovascular condition and sequelae from a prior different event documented as separately coexisting conditions.1
🌳 Code Tree / Hierarchy
I69 — Sequelae of cerebrovascular disease ❌ Non-billable
│
├── I69.0 — Sequelae of nontraumatic subarachnoid hemorrhage ❌ Non-billable
│ └── I69.05x — Hemiplegia/hemiparesis following SAH ✅ Billable (with laterality/dominance)
│
├── I69.1 — Sequelae of nontraumatic intracerebral hemorrhage ❌ Non-billable
│ │
│ ├── I69.10 — Unspecified sequelae of nontraumatic ICH ✅ Billable
│ ├── I69.11x — Cognitive deficits following nontraumatic ICH ✅ Billable (with specificity)
│ ├── I69.12x — Speech and language deficits following nontraumatic ICH ✅ Billable
│ ├── I69.13x — Monoplegia of upper limb following nontraumatic ICH ✅ Billable (with laterality)
│ ├── I69.14x — Monoplegia of lower limb following nontraumatic ICH ✅ Billable (with laterality)
│ │
│ ├── I69.15 — Hemiplegia/hemiparesis following nontraumatic ICH ❌ Non-billable
│ │ ├── I69.151 — Right dominant side ✅ Billable
│ │ ├── I69.152 — Left dominant side ◀ THIS CODE ✅ Billable
│ │ ├── I69.153 — Right non-dominant side ✅ Billable
│ │ ├── I69.154 — Left non-dominant side ✅ Billable
│ │ └── I69.159 — Unspecified side ✅ Billable
│ │
│ ├── I69.16x — Monoplegia of lower limb following nontraumatic ICH ✅ Billable (with laterality)
│ └── I69.19x — Other sequelae of nontraumatic ICH ✅ Billable
│
├── I69.2 — Sequelae of other nontraumatic intracranial hemorrhage ❌ Non-billable
├── I69.3 — Sequelae of cerebral infarction ❌ Non-billable
│ └── I69.35x — Hemiplegia/hemiparesis following cerebral infarction ✅ Billable (with specificity)
└── I69.9 — Sequelae of unspecified cerebrovascular diseases ❌ Non-billable
Left Dominant Default Rule — The Most Critical Coding Decision for This Code
Per ICD-10-CM guideline I.C.9.d.1: when the left side is affected but dominance is NOT documented, the default is NON-dominant (I69.154), not dominant — meaning I69.152 (left dominant) requires affirmative physician documentation of left-hand dominance. In practice, approximately 90% of the population is right-hand dominant, so most left-sided hemiplegia cases will default to I69.154 (left non-dominant) absent explicit documentation. Always query the physician or review the H&P for handedness before assigning I69.152.
Tip
ICD-10 CM I69.152 is a combination code — it captures both the sequela type (hemiplegia/hemiparesis) and the causative event (nontraumatic ICH) in a single code. Do not add an additional code from I61.x (active intracerebral hemorrhage) at a post-acute encounter just to “explain” the cause — the I69.152 code already contains that causal relationship. Adding I61.x at a sequelae-only encounter when there is no current acute bleed creates a false impression of an active hemorrhagic event and is a sequencing error that can misdirect clinical care and trigger payer audit flags.
✅ Includes
- Left-sided hemiplegia following brain hemorrhage (nontraumatic), dominant side — complete paralysis of the left side in a left-dominant patient; maps directly to I69.152.
- Left-sided hemiparesis following nontraumatic intracerebral hemorrhage, dominant side — partial left-sided weakness in a left-dominant patient; ICD-10-CM does not distinguish hemiplegia from hemiparesis in code assignment, both map to I69.152.
- Residual left dominant motor deficit following hypertensive cerebral hemorrhage — when hypertension was the documented cause of the ICH and left dominant hemiplegia persists, I69.152 is correct with optional additional I10 for hypertension if still present and managed.
❌ Excludes
Excludes 1
- ICD-10 CM Z86.73 — Personal history of cerebral infarction without residual deficit — this code is mutually exclusive with I69.152; Z86.73 applies only when the prior cerebrovascular event has resolved completely without any residual neurological deficits. If any hemiplegia or hemiparesis persists, I69.152 is correct and Z86.73 cannot be used simultaneously for the same condition — the presence of I69.152 on a claim inherently contradicts Z86.73 and their co-submission is a clinical and coding error.
- S06.- — Sequelae of traumatic intracranial injury — I69.152 covers only nontraumatic (spontaneous) intracerebral hemorrhage; if the motor deficit follows a traumatic brain injury (e.g., motor vehicle accident, fall with head trauma), the correct sequelae code family is S06.- not I69.1x.
Danger
The most dangerous Excludes 1 error in this family is assigning I69.152 alongside Z86.73 on the same claim for the same event — this is a direct clinical contradiction. If a patient has a residual left dominant hemiplegia, Z86.73 (no residual deficit) is factually incorrect and should never appear on that claim. This error is specifically called out in OIG toolkit guidance as a risk adjustment documentation integrity issue, and payers including Aetna, UHC, and Cigna actively audit for this combination.
Excludes 2
- I61.x — Nontraumatic intracerebral hemorrhage (active/acute) — separately codeable when the patient has both an acute current ICH and residual deficits from a prior, separate ICH event; dual coding is appropriate when physician documentation clearly establishes two distinct hemorrhagic events. In the post-acute setting where only sequelae are being managed (no new bleed), I61.x should NOT be added.
- G81.x — Hemiplegia and hemiparesis (general) — these codes apply to acute-phase hemiplegia during the initial stroke encounter; in the sequelae phase, I69.152 replaces G81.x and both should not be reported for the same residual condition. G81.x and I69.152 may coexist if a patient has a new acute stroke causing G81.x and a separate old ICH with I69.152 as the prior residual deficit from a different event.
📋 Clinical Overview
Sequelae Coding: I69.152 vs. Acute-Phase Hemiplegia Coding — Knowing the Timeline
The single most critical clinical distinction driving code selection between I69.152 and its acute-phase counterparts is the temporal phase of the patient’s care. Selecting the wrong code based on timeline is one of the highest-frequency stroke coding errors identified in RAC and OIG audits.
| Feature | I69.152 | G81.92 (Left Flaccid Hemiplegia) | I61.x + G81.xx |
|---|---|---|---|
| When to Use | Post-acute sequelae encounter; residual deficit from prior ICH | Acute phase only: hemiplegia during initial stroke hospitalization | Active acute ICH encounter; hemiplegia coded separately alongside event |
| Causal Event Embedded | ✅ Yes — ICH causation built into I69.152 | ❌ No — G81.x has no built-in cause | ❌ No — I61.x + G81.x are separate codes |
| Physician Documentation Required | Link between prior ICH and current hemiplegia must be documented | Hemiplegia type and laterality | Type and location of hemorrhage; type and laterality of hemiplegia |
| HCC Mapping | ✅ HCC 103 — RAF ~0.529 (community non-dual, v28) | ❌ G81.92 also maps HCC 103 | ❌ I61.x does NOT map HCC 103; G81.x does |
| Setting | Post-acute care, outpatient follow-up, rehab admission | Acute inpatient (original stroke encounter) | Acute inpatient (original stroke encounter) |
| Risk Adjustment Priority | HIGH — annual recapture required for MA plans | N/A in post-acute | N/A for sequelae |
Important
CDI trigger: Any inpatient or outpatient encounter where the patient has a prior history of intracerebral hemorrhage and current documentation of weakness, paralysis, or functional limitation of the left dominant upper or lower extremity should trigger a CDI query to the physician to confirm: (1) the residual deficit is causally related to the prior ICH, (2) the patient is left-hand dominant, and (3) the deficit was present during this encounter — all three elements must be documented to support I69.152. Missing any one of these elements drops the specificity and potentially the HCC value of the code.
Manifestations & Symptom Burden
- Left dominant upper extremity paralysis/weakness — the most clinically significant manifestation given dominant-side involvement; impairs writing, fine motor tasks, ADLs; code I69.152 captures this when following ICH.
- Left dominant lower extremity weakness/gait abnormality — may manifest as spastic gait, foot drop, or fall risk; when separately documented as a distinct lower extremity monoplegia, I69.142 (monoplegia of lower limb following nontraumatic ICH, left dominant) may be more specific if only the lower limb is affected.
- Dysphagia — common post-stroke complication; separately coded as I69.191 (dysphagia following nontraumatic intracerebral hemorrhage) when documented; do not assume it is captured by I69.152 — it is a separately reportable additional diagnosis that also has CDI and rehabilitation billing implications.
- Aphasia / speech and language deficits — left-dominant hemisphere strokes frequently cause aphasia because language centers (Broca’s, Wernicke’s) are typically in the left hemisphere; code I69.120 (aphasia following nontraumatic ICH) separately when documented; do not assume it is included in I69.152.
- Cognitive deficits — executive dysfunction, memory impairment, and processing speed deficits are common post-ICH; coded separately as I69.11x with appropriate specificity when documented; these are independently HCC-relevant in some value-based care models.
- Spasticity — post-stroke spasticity of the hemiplegic limbs is a separately documentable condition; not included in I69.152; when documented, G83.3x (monoplegia) or G81.1x (spastic hemiplegia) may apply for the acute setting, but physician query is needed to align with sequelae coding conventions.
Tip
ICD-10 CM I69.152 does NOT capture all post-ICH deficits — it captures only the hemiplegia/hemiparesis component. Post-ICH patients frequently have multiple separately codeable sequelae (aphasia, dysphagia, cognitive deficits, bladder dysfunction, depression) that each have their own I69.1xx codes and may individually carry HCC or quality-measure implications. Inpatient coders and CDI specialists should systematically review the entire I69.1x subcategory against the documentation for every ICH sequelae encounter — each separately documented deficit that meets UHDDS criteria must be captured.
💰 HCC Risk Adjustment
| HCC Model | HCC Category | HCC Label | Community Non-Dual RAF | Community Dual RAF |
|---|---|---|---|---|
| CMS-HCC v28 | HCC 103 | Hemiplegia/Hemiparesis | ~0.529 | ~0.319 |
| CMS-HCC v24 (legacy) | HCC 103 | Hemiplegia/Hemiparesis | ~0.437 | varies |
| HHS-HCC (ACA) | Not separately mapped | N/A | N/A | N/A |
| CDPS | Yes — mapped | Neurological conditions | varies | N/A |
ICD-10 CM I69.152 maps to HCC 103 (Hemiplegia/Hemiparesis) under CMS-HCC v28 with a community non-dual RAF coefficient of approximately 0.529, representing one of the higher RAF values among neurological sequelae codes and significantly above the baseline demographic score.5,6 This HCC is not hierarchically dominated by other stroke-related HCCs — it functions as an additive risk factor alongside other qualifying diagnoses in the same patient’s risk profile, meaning it stacks on top of any other HCC categories the patient qualifies for.5 Annual recapture is mandatory for Medicare Advantage organizations — unlike fee-for-service, MA plans require the code to be documented and submitted at least once per calendar year in the data collection period; a patient with longstanding ICH-related hemiplegia who does not have it documented at an encounter in a given year loses the HCC value for that contract year.6 CDI and risk adjustment teams should flag every patient with a history of intracerebral hemorrhage for a physician review of current hemiplegia/hemiparesis status at least once annually to support recapture.
🏥 MS-DRG Assignment
| MS-DRG | Title | Type | Notes |
|---|---|---|---|
| 056 | Degenerative Nervous System Disorders with MCC | Medical | I69.152 as principal in rehab/post-acute with MCC |
| 057 | Degenerative Nervous System Disorders with CC | Medical | I69.152 as principal with CC |
| 058 | Degenerative Nervous System Disorders without CC/MCC | Medical | I69.152 as principal, no CC/MCC |
| 065 | Intracranial Hemorrhage or Cerebral Infarction with MCC | Medical | I61.x as principal, I69.152 as potential MCC |
| 066 | Intracranial Hemorrhage or Cerebral Infarction with CC or rt PA | Medical | I61.x as principal, I69.152 as CC |
| 067 | Intracranial Hemorrhage without CC/MCC | Medical | I61.x as principal, I69.152 below threshold |
When I69.152 is the principal diagnosis (typically a rehab or post-acute neurological admission), it most commonly assigns to the DRG 056-058 family (Degenerative Nervous System Disorders) under MDC 01, with weight and reimbursement driven by CC/MCC status of secondary diagnoses.7 When I69.152 is a secondary diagnosis alongside an acute intracerebral hemorrhage (I61.x) as principal, I69.152 may function as a CC or MCC depending on the specific DRG grouping logic and CC/MCC exclusion tables — coders must check the CC/MCC exclusion list because when the principal and secondary diagnoses are closely related (same body system, same episode), the secondary may be excluded from CC/MCC consideration.7 The DRG weight difference between DRG 065 (with MCC) and DRG 067 (without CC/MCC) is substantial, making accurate secondary diagnosis capture and sequencing a high-value coding function for stroke inpatient encounters. Never assume I69.152 will act as a MCC in all groupings — always validate against the current MS-DRG v43.1 CC/MCC and exclusion tables.
🔗 Related ICD-10-CM Codes
Hemiplegia/Hemiparesis Sequelae Siblings (Same Subcategory I69.15x)
- I69.151 — Hemiplegia and hemiparesis following nontraumatic ICH, right dominant side — the most commonly assigned sibling (most patients are right-dominant)
- I69.153 — Right non-dominant side — for left-dominant patients with right-sided deficit
- I69.154 — Left non-dominant side — the default code when the left side is affected and dominance is not documented (per guideline I.C.9.d.1)
- I69.159 — Unspecified side — use only when laterality truly cannot be determined from documentation; avoid as a routine choice
Commonly Documented Co-Sequelae from Same ICH Event
- I69.120 — Aphasia following nontraumatic intracerebral hemorrhage — common left-dominant hemisphere deficit; separately reportable when documented
- I69.121 — Dysphasia following nontraumatic ICH — expressive/receptive language difficulty; HCC and quality-measure relevant
- I69.191 — Dysphagia following nontraumatic ICH — separately coded; supports medical necessity for speech therapy and swallowing studies
- I69.118 — Other cognitive deficits following nontraumatic ICH — memory, executive function, processing speed deficits
- I69.142 — Monoplegia of lower limb following nontraumatic ICH, left dominant — if only the lower extremity is involved; more specific than I69.152 when physician documents isolated leg involvement
- I69.132 — Monoplegia of upper limb following nontraumatic ICH, left dominant — if only the upper extremity is involved
Causal and Related Cardiovascular Codes
- I61.x — Nontraumatic intracerebral hemorrhage, current — the acute-phase code for the event that caused the sequelae; do not add at a post-acute sequelae-only encounter
- I10 — Essential (primary) hypertension — frequently the underlying cause of the ICH; assignable as an additional diagnosis when hypertension is documented as ongoing
- Z86.73 — Personal history of cerebral infarction without residual deficit — cannot be used alongside I69.152; use only when all deficits have fully resolved
🛠️ Commonly Associated CPT Codes
- 97163 — Physical therapy evaluation, high complexity (45 minutes) — the appropriate PT evaluation level for a patient with left dominant hemiplegia; supports I69.152 as the primary medical necessity diagnosis; documentation must reflect high complexity clinical presentation per AMA PT evaluation criteria.8,9
- 97112 — Therapeutic procedure, neuromuscular reeducation — directly applicable to post-stroke hemiplegia rehabilitation targeting motor control, balance, coordination, and proprioception on the affected left dominant side; among the most commonly billed PT codes for stroke sequelae.9
- 97110 — Therapeutic exercise — used for strengthening, range of motion, endurance, and flexibility training of the hemiplegic left upper and lower extremities; frequently billed alongside 97112 for stroke rehab; each 15-minute unit requires separate time documentation.9
- 97116 — Gait training therapy — applicable when the patient has gait abnormalities or functional ambulation deficits secondary to left dominant hemiplegia; distinct from 97110 and 97112 — gait training focuses on functional walking pattern rather than isolated exercise or neuromuscular tasks.9
- 97530 — Therapeutic activities — one-on-one functional task training using real-world activities (e.g., reaching, grasping, transfers) targeted at ADL restoration for the hemiplegic dominant hand; particularly relevant for dominant-side deficits where occupational performance is most impacted.9
- 97167 — Occupational therapy evaluation, high complexity (60 minutes) — appropriate OT evaluation level for dominant-side hemiplegia with ADL impairment; I69.152 directly supports this code as medical necessity; OT services address fine motor, ADL independence, and adaptive equipment for the left dominant hand.9
NCCI Bundling Considerations
CPT 97110 (therapeutic exercise) and 97112 (neuromuscular reeducation) are not inherently bundled with each other by NCCI when each is performed as a distinct, separately documented 15-minute unit of service — both may be reported at the same encounter provided the time is separately documented and the clinical rationale for each distinct intervention is in the therapy note.8 However, 97150 (group therapeutic procedures) cannot be billed for the same time segment as individual therapy codes (97110, 97112, 97530) — group and individual therapy units must be temporally distinct. The 8-minute rule applies to all time-based therapy codes: a service must be performed for at least 8 minutes to bill one unit, and the total timed units must be consistent with the total treatment time documented. Medicare’s therapy cap and -KX modifier requirements apply when outpatient therapy services for I69.152 exceed the annual threshold — coders should ensure the -KX modifier is appended to therapy codes when the cap is exceeded and medical necessity supports continued treatment.
🔬 ICD-10-PCS Crosswalk
ICD-10-PCS codes are inpatient-only and relevant for rehabilitation procedures performed during an inpatient stay for ICH sequelae.
- F07L0ZZ — Motor Treatment of Left Upper Extremity using Therapeutic Exercise, None — applicable when inpatient PT performs motor rehabilitation exercises targeting the hemiplegic left upper extremity; the root operation “Motor Treatment” under Section F (Physical Rehabilitation and Diagnostic Audiology) captures therapeutic exercise for motor deficits.10
- F07M0ZZ — Motor Treatment of Left Lower Extremity using Therapeutic Exercise, None — applicable for inpatient rehabilitation of left lower extremity motor deficits secondary to ICH-related hemiplegia; reported alongside F07L0ZZ when both upper and lower extremity motor treatment is performed.10
- F06L0ZZ — Therapeutic Exercise of Left Upper Extremity — may apply for specific exercise-based inpatient rehabilitation of the left dominant upper extremity; PCS procedure coding for rehabilitation varies by facility policy and must follow official PCS Section F guidelines.10
- GZJ0ZZZ — Electroconvulsive Therapy, Single Seizure — not applicable here, but coders should ensure they are not accidentally mapping neurology-adjacent PCS codes; stroke rehabilitation PCS codes are in Section F (Rehabilitation), not Section G (Mental Health).10
💊 Coding Scenarios and Examples
Scenario 1 — Outpatient Neurology Follow-Up (Post-ICH, Sequelae Encounter) A 58-year-old left-handed male presents to neurology clinic 6 months after a hypertensive nontraumatic intracerebral hemorrhage. He continues to have significant left-sided weakness involving both upper and lower extremities. The physician documents: “Persistent left dominant hemiparesis following prior intracerebral hemorrhage. Patient is left-hand dominant. Hypertension well-controlled.”
- Correct coding: I69.152, I10 (hypertension, ongoing)
- No I61.x added — the hemorrhage is resolved; I69.152 already encodes the causal relationship
- Sequencing: I69.152 as first-listed (reason for visit); I10 as additional diagnosis
- CDI note: The physician explicitly documented “left-hand dominant” — this is what justifies I69.152 vs. the default I69.154; file the documentation as the basis for code selection in case of audit.
Scenario 2 — Inpatient Acute Rehab Admission (Post-ICH, Sequelae Principal) Patient is transferred from acute care to inpatient rehabilitation following right basal ganglia ICH with resultant left dominant hemiplegia. The rehab admission H&P documents: “Left hemiplegia following intracerebral hemorrhage, left-hand dominant patient. Goals: functional ambulation, ADL independence, return home.”
- Correct coding: I69.152 as principal diagnosis; I61.09 (other nontraumatic ICH — if site documented) may be added as secondary for clinical context per facility coding policy; I10 if hypertension ongoing
- MS-DRG: 056, 057, or 058 (Degenerative Nervous System Disorders) depending on CC/MCC status of secondary diagnoses
- Sequencing: I69.152 as principal (reason for rehab admission); do not re-sequence I61.x as principal when the hemorrhage is resolved and rehab is the focus
- CDI note: Confirm whether the patient has any qualifying CCs (e.g., UTI, hyponatremia) or MCCs (e.g., sepsis, respiratory failure) from the acute stay that are still active and meeting UHDDS criteria at admission to rehab — these will drive DRG weight from 058 up to 057 or 056.
Scenario 3 — Left Side Affected, Dominance NOT Documented A 65-year-old female is seen for outpatient PT. The neurologist’s note references “left-sided hemiparesis following prior intracerebral hemorrhage” but does not document whether the patient is right- or left-handed. No handedness information appears anywhere in the chart.
- Correct coding per ICD-10-CM guideline I.C.9.d.1: Left side affected + dominance not documented = default to NON-dominant = I69.154 (left non-dominant). I69.152 (left dominant) would be INCORRECT in this scenario.
- Sequencing: I69.154 as first-listed
- CDI note: This is a prime physician query opportunity — a simple query asking “Is this patient left-hand dominant or right-hand dominant?” can produce an I69.152 code with a ~0.529 RAF vs. I69.154 which still maps HCC 103 but at the same RAF — however, dominant-side documentation matters for clinical accuracy, legal defensibility, and rehabilitation planning even if RAF is equivalent. Query is still worth sending for clinical documentation integrity purposes.
⚠️ Coding Pitfalls and Tips
- NEVER assign I69.152 during the acute ICH encounter. I69.x codes are for post-acute sequelae only — during the original intracerebral hemorrhage admission, use I61.x as principal and G81.xx for the hemiplegia; I69.152 at an acute ICH encounter is a coding error that misrepresents the phase of care and will be flagged in RAC and MAC audits.1,2
- Left dominant is NOT the default for left-sided deficits. Per ICD-10-CM guideline I.C.9.d.1, when left side is documented but dominance is not specified, the default is non-dominant (I69.154) — assigning I69.152 (dominant) without physician documentation of left-hand dominance is a specificity error and potentially a compliance risk in the risk adjustment context.2
- Do not add I61.x at a post-acute sequelae-only encounter. I69.152 already encodes the causal ICH relationship — adding an active I61.x code when no current bleed exists falsely implies an ongoing hemorrhagic event and is a principal/secondary sequencing error that can trigger payer medical record requests.1
- Z86.73 and I69.152 are mutually exclusive — never submit both for the same condition. Z86.73 (personal history without residual deficit) and I69.152 (sequelae with active deficit) are clinically contradictory; submitting both is a compliance risk specifically flagged in CMS OIG guidance for risk adjustment documentation integrity.6
- HCC 103 requires annual recapture for Medicare Advantage. Unlike fee-for-service, MA risk adjustment requires I69.152 to be documented in at least one claim per data collection year — coders and CDI teams must ensure this code is captured at annual wellness visits, specialist follow-ups, or any encounter where the physician documents the ongoing hemiplegia.6
- Capture ALL post-ICH sequelae separately. I69.152 covers only the hemiplegia/hemiparesis component — aphasia (I69.120), dysphagia (I69.191), and cognitive deficits (I69.118) are separate codes that must be independently documented and coded when present; failure to capture these leaves RAF value, clinical documentation completeness, and medical necessity support on the table.1,3