B91 ICD-10-CM Code: Sequelae of poliomyelitis
B91 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Sequelae of infectious and parasitic diseases (B90-B94)
B91
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSequelae of poliomyelitis
Permanent neurological complications from poliomyelitis (polio), such as paralysis or muscle weakness that persists after the acute infection has resolved.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for B91. Check the code and parent instructions in the Code Book.
Excludes 2
Official- carrier or suspected carrier of infectious disease (Z22.-)Inherited from A00-B99
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)Inherited from A00-B99
- infectious and parasitic diseases specific to the perinatal period (P35-P39)Inherited from A00-B99
- influenza and other acute respiratory infections (J00-J22)Inherited from A00-B99
Related Codes
No related codes are included in this display for B91. Check the Code Book for the complete code path.
Includes
Official- diseases generally recognized as communicable or transmissibleInherited from A00-B99
Excludes 1
Official- postpolio syndrome (G14)
- certain localized infections - see body system-related chaptersInherited from A00-B99
Code First
Official- condition resulting from (sequela) the infectious or parasitic diseaseInherited from B90-B94
Use Additional
Official- code to identify resistance to antimicrobial drugs (Z16.-)Inherited from A00-B99
Code Also
OfficialNo Code Also instructions are included in this display for B91. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is B91 an HCC code?
No. B91 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- B91
- Description
- Sequelae of poliomyelitis
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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What This Code Means
B91 is the ICD-10-CM diagnosis code for sequelae of poliomyelitis. Permanent neurological complications from poliomyelitis (polio), such as paralysis or muscle weakness that persists after the acute infection has resolved. B91 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering sequelae of infectious and parasitic diseases (b90-b94).
B91 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Document the specific residual effects such as paralysis, muscle atrophy, or weakness affecting particular limbs or body regions.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for B91 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document the specific residual effects such as paralysis, muscle atrophy, or weakness affecting particular limbs or body regions
- •This code applies to patients with a history of polio infection; ensure the acute infection is not currently active
Excludes 1, Do NOT code together
- postpolio syndrome (G14)