ICD-10-CM 2027
ICD-10 code for myopathy
From the official ICD-10-CM alphabetic index entry “Myopathy”. Page updated September 29, 2026.
About coding myopathy
The ICD-10-CM code for myopathy is G72.9 (Myopathy, unspecified). The official index lists 67 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G72.9.
Within G72, choose G72.9 (Myopathy, unspecified) only when documentation doesn't support a more specific option: drug-induced myopathy (G72.0), alcoholic myopathy (G72.1), myopathy due to other toxic agents (G72.2), periodic paralysis (G72.3), inflammatory and immune myopathies, not elsewhere classified (G72.4) and other specified myopathies (G72.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific myopathy codes (official index)
- acute
- necrotizing G72.81 — Critical illness myopathy
- quadriplegic G72.81 — Critical illness myopathy
- alcoholic G72.1 — Alcoholic myopathy
- benign congenital G71.20 — Congenital myopathy, unspecified
- central core G71.29 — Other congenital myopathy
- centronuclear G71.228 — Other centronuclear myopathy
- autosomal (dominant) (recessive) G71.228 — Other centronuclear myopathy
- other specified NEC G71.228 — Other centronuclear myopathy
- congenital (benign) G71.20 — Congenital myopathy, unspecified
- critical illness G72.81 — Critical illness myopathy
- distal G71.09 — Other specified muscular dystrophies
- drug-induced G72.0 — Drug-induced myopathy
- endocrine NEC E34.9 — Endocrine disorder, unspecified
- extraocular muscles H05.82 — Myopathy of extraocular muscles
- facioscapulohumeral G71.02 — Facioscapulohumeral muscular dystrophy
- hereditary G71.9 — Primary disorder of muscle, unspecified
- specified NEC G71.8 — Other primary disorders of muscles
- hyaline body G71.29 — Other congenital myopathy
- immune NEC G72.49 — Other inflammatory and immune myopathies, not elsewhere classified
- in (due to)
- Addison's disease E27.1 — Primary adrenocortical insufficiency
- alcohol G72.1 — Alcoholic myopathy
- amyloidosis E85.0 — Non-neuropathic heredofamilial amyloidosis
- cretinism E00.9 — Congenital iodine-deficiency syndrome, unspecified
- Cushing's syndrome E24.9 — Cushing's syndrome, unspecified
- drugs G72.0 — Drug-induced myopathy
- endocrine disease NEC E34.9 — Endocrine disorder, unspecified
- giant cell arteritis M31.6 — Other giant cell arteritis
- glycogen storage disease E74.00 — Glycogen storage disease, unspecified
- hyperadrenocorticism E24.9 — Cushing's syndrome, unspecified
- hyperparathyroidism NEC E21.3 — Hyperparathyroidism, unspecified
- hypoparathyroidism E20.9 — Hypoparathyroidism, unspecified
- hypopituitarism E23.0 — Hypopituitarism
- hypothyroidism E03.9 — Hypothyroidism, unspecified
- infectious disease NEC B99 — Other and unspecified infectious diseases
- lipid storage disease E75.6 — Lipid storage disorder, unspecified
- metabolic disease NEC E88.9 — Metabolic disorder, unspecified
- myxedema E03.9 — Hypothyroidism, unspecified
- parasitic disease NEC B89 — Unspecified parasitic disease
- polyarteritis nodosa M30.0 — Polyarteritis nodosa
- rheumatoid arthritis
- sarcoidosis D86.87 — Sarcoid myositis
- scleroderma M34.82 — Systemic sclerosis with myopathy
- sicca syndrome M35.03 — Sjogren syndrome with myopathy
- Sjögren's syndrome M35.03 — Sjogren syndrome with myopathy
- systemic lupus erythematosus M32.19 — Other organ or system involvement in systemic lupus erythematosus
- thyrotoxicosis (hyperthyroidism) E05.90 — Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
- with thyroid storm E05.91 — Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
- toxic agent NEC G72.2 — Myopathy due to other toxic agents
- inflammatory NEC G72.49 — Other inflammatory and immune myopathies, not elsewhere classified
- intensive care (ICU) G72.81 — Critical illness myopathy
- limb-girdle
- mitochondrial NEC G71.3 — Mitochondrial myopathy, not elsewhere classified
- Miyoshi, type 3 G71.035 — Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- myosin storage G71.29 — Other congenital myopathy
- mytonic, proximal (PROMM) G71.11 — Myotonic muscular dystrophy
- myotubular (centronuclear) G71.220 — X-linked myotubular myopathy
- X-linked G71.220 — X-linked myotubular myopathy
- nemaline G71.21 — Nemaline myopathy
- ocular G71.09 — Other specified muscular dystrophies
- oculopharyngeal G71.09 — Other specified muscular dystrophies
- of critical illness G72.81 — Critical illness myopathy
- primary G71.9 — Primary disorder of muscle, unspecified
- specified NEC G71.8 — Other primary disorders of muscles
- progressive NEC G72.89 — Other specified myopathies
- proximal myotonic (PROMM) G71.11 — Myotonic muscular dystrophy
- rod (body) G71.21 — Nemaline myopathy
- scapulohumeral G71.02 — Facioscapulohumeral muscular dystrophy
- specified NEC G72.89 — Other specified myopathies
- toxic G72.2 — Myopathy due to other toxic agents
Common questions about myopathy ICD-10 codes
What is the ICD-10 code for myopathy?
- G72.9 — Myopathy, unspecified. More specific codes apply when the documentation supports them: G72.81, G72.81, G72.1, G71.20 and others below.
What is the ICD-10 code for alcoholic myopathy?
- G72.1 — Alcoholic myopathy.
What is the ICD-10 code for benign congenital myopathy?
- G71.20 — Congenital myopathy, unspecified.
What is the ICD-10 code for central core myopathy?
- G71.29 — Other congenital myopathy.
What is the ICD-10 code for centronuclear myopathy?
- G71.228 — Other centronuclear myopathy.
What is the ICD-10 code for congenital myopathy?
- G71.20 — Congenital myopathy, unspecified.
What is the ICD-10 code for critical illness myopathy?
- G72.81 — Critical illness myopathy.
Is G72.9 billable?
- Yes. G72.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G72.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G72.9 as a principal diagnosis.
Is G72.9 a CC or MCC?
- No. G72.9 is neither a CC nor an MCC under MS-DRG v44.0.