ICD-10-CM · Chapter 6

G71..12 Myotonia congenita

Billable

← G71 — Primary disorders of muscles Chapter 6: G00-G99

Includes

Acetazolamide responsive myotonia congenita
Dominant myotonia congenita [Thomsen disease]
Myotonia levior
Recessive myotonia congenita [Becker disease]

Last reviewed: September 2026