Is ICD-10-CM code G73 billable?

No, G73 (Disorders of myoneural junction and muscle in diseases classified elsewhere) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code G73 belong to?

G73 belongs to Chapter 6 of the ICD-10-CM tabular list: G00–G99 (Diseases of the Nervous System).

G73Non-billable

Disorders of myoneural junction and muscle in diseases classified elsewhere

Diseases of the Nervous System·Diseases of myoneural junction and muscle (G70-G73)·category·FY 2026

Use a more specific code (3 billable)

G73.1Lambert-Eaton syndrome in neoplastic disease G73.3Myasthenic syndromes in other diseases classified elsewhere G73.7Myopathy in diseases classified elsewhere

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Clinical Hierarchy

BillableHas subcodes

CH6Diseases of the nervous system (G00-G99)

G70-G73Diseases of myoneural junction and muscle (G70-G73)

G73Disorders of myoneural junction and muscle in diseases classified elsewhereNot billable

G73.1Lambert-Eaton syndrome in neoplastic diseaseBillable

G73.3Myasthenic syndromes in other diseases classified elsewhereBillable

G73.7Myopathy in diseases classified elsewhereBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.