G72.4 – Inflammatory and immune myopathies, not elsewhere classified

ICD-10-CM 2027 diagnosis code · Diseases of myoneural junction and muscle

Non-billable header

ICD-10-CM code G72.4

Code: G72.4 (claims format: G724)
Description: Inflammatory and immune myopathies, not elsewhere classified
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 6. Diseases of the nervous system (G00-G99)
Block: G70-G73 Diseases of myoneural junction and muscle
Parent codes: G72

Billable codes under G72.4

G72.4 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

G72 – Other and unspecified myopathies

Excludes1 (not coded here):

arthrogryposis multiplex congenita (Q74.3)
dermatopolymyositis (M33.-)
ischemic infarction of muscle (M62.2-)
myositis (M60.-)
polymyositis (M33.2.-)

Related codes in G72

G72.0 – Drug-induced myopathyBillable
G72.1 – Alcoholic myopathyBillable
G72.2 – Myopathy due to other toxic agentsBillable
G72.3 – Periodic paralysisBillable
G72.8 – Other specified myopathiesHeader
G72.9 – Myopathy, unspecifiedBillable

Frequently asked questions

What is ICD-10 code G72.4?

G72.4 is the ICD-10-CM code for inflammatory and immune myopathies, not elsewhere classified, in the block G70-G73 (Diseases of myoneural junction and muscle).

Is G72.4 a billable code?

No. G72.4 is a header code with more specific child codes; report one of the billable codes listed above.

What category does G72.4 belong to?

It belongs to category G72 – Other and unspecified myopathies.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.