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ICD-10-CM 2027 diagnosis code

A80Acute poliomyelitis

Not billable — use a more specific code

A80 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A80

A80 is the ICD-10-CM diagnosis code for acute poliomyelitis. It belongs to block A80-A89 (viral and prion infections of the central nervous system) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: A80.0 (vaccine-associated), A80.1 (imported), A80.2 (indigenous), A80.3 (unspecified), A80.4 (poliomyelitis) and A80.9 (unspecified).

Don't report A80 together with the conditions in its Excludes1 note: acute flaccid myelitis (G04.82).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A80

Coding notes

Excludes1Not coded here — never report together with this code
  • acute flaccid myelitis (G04.82)

Notes that apply from higher levels

Instructions written at a parent level also apply to A80.

Broader instructions also apply from A80-A89 Viral and prion infections of the central nervous system and Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference A80

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about A80

Is A80 billable?

No. A80 is a header code. Report one of its more specific subcodes instead.