Hereditary progressive muscular dystrophy

This code signifies a group of inherited disorders characterized by progressive muscle weakness and degeneration. These conditions result from genetic defects that impair the production of proteins essential for muscle function, leading to gradual loss of muscle tissue over time. The progression and specific muscles affected vary depending on the particular type of hereditary muscular dystrophy.

Use this code when documentation specifies a diagnosis of hereditary progressive muscular dystrophy, such as Duchenne, Becker, limb-girdle, or facioscapulohumeral muscular dystrophy. This code is appropriate when the genetic origin and progressive nature of the muscle degeneration are clearly established by a neurologist or geneticist. It should be supported by clinical findings, genetic testing results, or family history.

• Do not use for acquired forms of myopathy or muscular atrophy; these have distinct codes.
• Be sure to review documentation for the specific type of muscular dystrophy to ensure the most precise code is selected if available in the code set.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the patient's encounter.