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ICD-10-CM 2027 diagnosis code

M00.8Arthritis and polyarthritis due to other bacteria

Not billable — use a more specific code

M00.8 is a header code, so it can't be reported by itself. Choose one of the 10 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 M00.8

M00.8 is the ICD-10-CM diagnosis code for arthritis and polyarthritis due to other bacteria. It belongs to category M00 (pyogenic arthritis), block M00-M02 (infectious arthropathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

Within M00, choose M00.8 (Arthritis and polyarthritis due to other bacteria) only when documentation doesn't support a more specific option: staphylococcal arthritis and polyarthritis (M00.0), Pneumococcal arthritis and polyarthritis (M00.1), other streptococcal arthritis and polyarthritis (M00.2) and unspecified (M00.9).

To report this condition, pick the subcode that matches the documentation: M00.80 (joint), M00.81 (shoulder), M00.82 (elbow), M00.83 (wrist), M00.84 (hand), M00.85 (hip), M00.86 (knee), M00.87 (foot) and 2 more.

Use an additional code (B96) to identify bacteria.

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 M00.8

Coding notes

Use additional codeAdd a secondary code to fully describe the condition
  • code (B96) to identify bacteria

Notes that apply from higher levels

Instructions written at a parent level also apply to M00.8.

› From M00 Pyogenic arthritis
Excludes2
  • infection and inflammatory reaction due to internal joint prosthesis (T84.5-)

Broader instructions also apply from M00-M02 Infectious arthropathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to M00.8.

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 M00.8

Is M00.8 billable?

No. M00.8 is a header code. Report one of its more specific subcodes instead.