
2015 ICD-9-CM Diagnosis Code 359.21
Myotonic muscular dystrophy
- 2015
- Billable Thru Sept 30/2015
- Non-Billable On/After Oct 1/2015
- ICD-9-CM 359.21 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 359.21 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM:
359.21 converts directly to:
- 2015/16 ICD-10-CM G71.11 Myotonic muscular dystrophy
Approximate Synonyms
- Cardiomyopathy in myotonic dystrophy
- Dilated cardiomyopathy secondary to myotonic dystrophy
- Dystrophia myotonica facies
- Myotonic cataract
- Myotonic dystrophy
- Steinert myotonic dystrophy syndrome
Clinical Information
- Autosomal dominant neuromuscular disorder which usually presents in early adulthood, characterized by progressive muscular atrophy (most frequently involving the hands, forearms, and face), myotonia, frontal baldness, lenticular opacities, and testicular atrophy; cardiac conduction abnormalities, diaphragmatic weakness, and mild mental retardation may also occur; congenital myotonic dystrophy is a severe form of this disorder
Applies To
- Dystrophia myotonica
- Myotonia atrophica
- Myotonic dystrophy
- Proximal myotonic myopathy (PROMM)
- Steinert's disease