359.21 MYOTONIC MUSCLR DYSTRPHY

Home > ICD-9 List > Diseases of the nervous system > Disorders of the peripheral nervous system (350-359) > 359 Muscular dystrophies and other myopathies > 359.21

Code Information

Diagnosis Code: 359.21

Short Description: Myotonic musclr dystrphy

Long Description: Myotonic muscular dystrophy

Code Classification:

Diseases of the nervous system (320–359)
- Disorders of the peripheral nervous system (350-359)
  - 359 Muscular dystrophies and other myopathies
    - 359.21 Myotonic musclr dystrphy

Code Version: 2015 ICD-9-CM

Synonyms

Cardiomyopathy in myotonic dystrophy
Dilated cardiomyopathy secondary to myotonic dystrophy
Dystrophia myotonica facies
Steinert myotonic dystrophy syndrome

References to Index of Diseases and Injuries

The code 359.21 has the following ICD-9-CM references to the Index of Diseases and Injuries

Atrophy, atrophic
- muscle, muscular 728.2
  - myotonic 359.21
- myotonia 359.21

Batten-Steinert syndrome 359.21

Cardiomyopathy (congestive) (constrictive) (familial) (infiltrative) (obstructive) (restrictive) (sporadic) 425.4
- due to
  - myotonia atrophica 359.21 [425.8]

Cataract (anterior cortical) (anterior polar) (black) (capsular) (central) (cortical) (hypermature) (immature) (incipient) (mature)� 366.9
- associated with
  - myotonic disorders 359.21 [366.43]
- myotonic 359.21 [366.43]

Curschmann (-Batten) (-Steinert) disease or syndrome 359.21

Disease, diseased - see also Syndrome
- Batten-Steinert 359.21
- Curschmann's 359.21
- heart (organic) 429.9
  - due to
    - myotonia atrophica 359.21 [425.8]
- Steinert's 359.21

Dystrophy, dystrophia 783.9
- muscular 359.1
  - myotonic 359.21
- myotonic 359.21
- myotonica 359.21

Myocardiopathy (congestive) (constrictive) (familial) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic) 425.4
- due to
  - myotonia atrophica 359.21 [425.8]

Myopathy 359.9
- proximal myotonic (PROMM) 359.21

Myotonia (acquisita) (intermittens) 728.85
- atrophica 359.21
- dystrophica 359.21

PROMM (proximal myotonic myotonia) 359.21

Steinert's disease 359.21

Syndrome - see also Disease
- Batten-Steinert 359.21
- Curschmann (-Batten) (-Steinert) 359.21

Crosswalk Information

The code 359.21 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
359.21		G71.11	Myotonic muscular dystrophy

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
359.0	Congenital hereditary muscular dystrophy
359.1	Hereditary progressive muscular dystrophy
359.22	Myotonia congenita
359.23	Myotonic chondrodystrophy
359.24	Drug- induced myotonia
359.29	Other specified myotonic disorder
359.3	Periodic paralysis
359.4	Toxic myopathy
359.5	Myopathy in endocrine diseases classified elsewhere
359.6	Symptomatic inflammatory myopathy in diseases classified elsewhere
359.71	Inclusion body myositis
359.79	Other inflammatory and immune myopathies, NEC
359.81	Critical illness myopathy
359.89	Other myopathies
359.9	Myopathy, unspecified

This page was last updated on: 10/1/2014

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