ICD-10-CM · Chapter 6

G73..7 Myopathy in diseases classified elsewhere

Billable

← G73 — Disorders of myoneural junction and muscle in diseases classified elsewhere Chapter 6: G00-G99

Excludes 1 (cannot be coded together)

myopathy in:
rheumatoid arthritis (M05.32)
sarcoidosis (D86.87)
scleroderma (M34.82)
Sjögren syndrome (M35.03)
systemic lupus erythematosus (M32.19)

Code First

underlying disease, such as:
glycogen storage disease (E74.0-)
hyperparathyroidism (E21.0, E21.3)
hypoparathyroidism (E20.-)
lipid storage disorders (E75.-)

Last reviewed: September 2026