MCMCB Pro
G73

G73Disorders of myoneural junction and muscle in diseases classified elsewhere

Non-billable headerICD-10-CM

G73 is a non-billable header ICD-10-CM code for disorders of myoneural junction and muscle in diseases classified elsewhere. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with G73

These codes carry an Excludes1 note pointing at G73. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G73 alone.

  • M63Disorders of muscle in diseases classified elsewhere
  • G70.81Lambert-Eaton syndrome in disease classified elsewhere

Risk adjustment

G73 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead G73

3 child codes. Green means billable.

Questions about G73

Is G73 a billable ICD-10-CM code?
No. G73 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G73 sit in the tabular list?
Diseases of the nervous system (G00-G99), in the block Diseases of myoneural junction and muscle (G70-G73).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.