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G71.14

Billable

Drug induced myotonia

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Muscle stiffness and delayed relaxation caused by medications or drugs, rather than an inherited genetic condition.

Coding Tips

  • •Always document the specific drug or medication causing the myotonia in the medical record
  • •Consider whether the myotonia will resolve after discontinuation of the offending agent

Use Additional Code

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Code Hierarchy

└G71Primary disorders of muscles└G71.1Myotonic disorders└G71.14Drug induced myotonia
└G71.14Drug induced myotonia

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