Myotonic disorders

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 5 more specific codes instead:

G71.11 Myotonic muscular dystrophy
G71.12 Myotonia congenita
G71.13 Myotonic chondrodystrophy
G71.14 Drug induced myotonia
G71.19 Other specified myotonic disorders

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Myotonic disorders

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from G71 Primary disorders of muscles

Excludes2 - not included here

arthrogryposis multiplex congenita (Q74.3)
metabolic disorders (E70-E88)
myositis (M60.-)

Codes in the same group

Code	Description	Status
G71.0	Muscular dystrophy	Not billable
G71.2	Congenital myopathies	Not billable
G71.3	Mitochondrial myopathy, not elsewhere classified	Valid
G71.8	Other primary disorders of muscles	Valid
G71.9	Primary disorder of muscle, unspecified	Valid