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ICD-10-CM 2027 diagnosis code

G71Primary disorders of muscles

Not billable — use a more specific code

G71 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 G71

G71 is the ICD-10-CM diagnosis code for primary disorders of muscles. It belongs to block G70-G73 (diseases of myoneural junction and muscle) and chapter 6 (diseases of the nervous system). 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: G71.0 (dystrophy), G71.1 (disorders), G71.2 (myopathies), G71.3 (classified), G71.8 (muscles) and G71.9 (unspecified).

The conditions in its Excludes2 note aren't part of G71, but may be coded alongside it if the patient has both: arthrogryposis multiplex congenita (Q74.3), metabolic disorders (E70-E88) and myositis (M60.-).

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 G71

Coding notes

Excludes2Not included here — may be reported together if both conditions exist
  • arthrogryposis multiplex congenita (Q74.3)
  • metabolic disorders (E70-E88)
  • myositis (M60.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to G71.

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

Codes whose notes reference G71

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 G71

Is G71 billable?

No. G71 is a header code. Report one of its more specific subcodes instead.