2026 ICD-10-CM Diagnosis Code B91Sequelae of poliomyelitis
ICD-10-CM Codes›A00–B99›B90-B94›B91
- Billable — Valid for Submission
- POA Exempt
- Not Chronic
B91 is a billable ICD-10-CM diagnosis code for sequelae of poliomyelitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 91 through 93. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sequela of specified infectious disease conditions and Sequela of specified nervous system conditions.
Code Identity
Code Classification
Present on Admission (POA)Billing
B91 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Sequelae of infectious and parasitic diseases (B90-B94).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bilateral osteopathy of feet following poliomyelitis
- Late effects of poliomyelitis
- Neurogenic urinary bladder following poliomyelitis
- Neuromuscular scoliosis due to and following poliomyelitis
- Neuromuscular scoliosis of lumbar spine
- Neuromuscular scoliosis of thoracic spine
- Neuromuscular scoliosis of thoracolumbar spine
- Osteopathy of ankle joint region following poliomyelitis
- Osteopathy of bilateral ankles following poliomyelitis
- Osteopathy of bilateral femurs following poliomyelitis
- Osteopathy of bilateral fibulas following poliomyelitis
- Osteopathy of bilateral tibias following poliomyelitis
- Osteopathy of femur following poliomyelitis
- Osteopathy of fibula following poliomyelitis
- Osteopathy of left ankle following poliomyelitis
- Osteopathy of left femur following poliomyelitis
- Osteopathy of left fibula following poliomyelitis
- Osteopathy of left foot following poliomyelitis
- Osteopathy of left humerus following poliomyelitis
- Osteopathy of left tibia following poliomyelitis
- Osteopathy of right ankle following poliomyelitis
- Osteopathy of right femur following poliomyelitis
- Osteopathy of right fibula following poliomyelitis
- Osteopathy of right foot following poliomyelitis
- Osteopathy of right humerus following poliomyelitis
- Osteopathy of right tibia following poliomyelitis
- Osteopathy of tibia following poliomyelitis
- Paresis as late effect of poliomyelitis
- Poliomyelitis osteopathy of the ankle and/or foot
- Poliomyelitis osteopathy of the lower leg
- Poliomyelitis osteopathy of the upper arm
- Scoliosis due to and following infection
- Thoracolumbar neuromuscular scoliosis due to and following poliomyelitis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- postpolio syndrome G14
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Sequelae (of) See Also: condition;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Polio and Post-Polio Syndrome
Polio, or poliomyelitis, is a disease that spreads from person to person. It is caused by the poliovirus. The virus attacks the nervous system. In serious cases, it can cause paralysis (where you can't move parts of the body). The paralysis may be lifelong and can sometimes be life-threatening.
The full article covers:
- What is polio?
- How does polio spread?
- Who is more likely to develop polio?
- What are the symptoms of polio?
- What is post-polio syndrome (PPS)?
- How is polio diagnosed?
- What are the treatments for polio and post-polio syndrome (PPS)?
- Can polio be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert B91 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B91Overview
What is the ICD-10 code for sequelae of poliomyelitis?
The ICD-10-CM code for sequelae of poliomyelitis is B91. It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is B91 (Sequelae of poliomyelitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report sequelae of poliomyelitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does B91 group to?
When sequelae of poliomyelitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 91, 92, 93, with relative weights from 0.7963 to 1.7562 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B91 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for sequelae of poliomyelitis on inpatient claims. The code appears in the Sequelae of infectious and parasitic diseases (B90-B94) range of the CMS exempt list.
What is the ICD-9 equivalent of B91?
Under the General Equivalence Mappings, sequelae of poliomyelitis converts to ICD-9-CM 138 (late effect acute polio). The mapping is approximate, so confirm the match fits the documentation.
