M62.03 – Separation of muscle (nontraumatic), forearm

ICD-10-CM 2027 diagnosis code · Disorders of muscles

Non-billable header

ICD-10-CM code M62.03

Code: M62.03 (claims format: M6203)
Description: Separation of muscle (nontraumatic), forearm
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M60-M63 Disorders of muscles
Parent codes: M62 › M62.0

Billable codes under M62.03

M62.03 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.

M62 – Other disorders of muscle

Excludes1 (not coded here):

alcoholic myopathy (G72.1)
cramp and spasm (R25.2)
drug-induced myopathy (G72.0)
myalgia (M79.1-)
stiff-man syndrome (G25.82)

Excludes2 (not included here):

nontraumatic hematoma of muscle (M79.81)

M62.0 – Separation of muscle (nontraumatic)

Applicable to:

Diastasis of muscle

Excludes1 (not coded here):

diastasis recti complicating pregnancy, labor and delivery (O71.8)
traumatic separation of muscle- see strain of muscle by body region

Block M60-M63

Excludes1 (not coded here):

dermatopolymyositis (M33.-)
myopathy in amyloidosis (E85.-)
myopathy in polyarteritis nodosa (M30.0)
myopathy in rheumatoid arthritis (M05.32)
myopathy in scleroderma (M34.-)
myopathy in Sjögren's syndrome (M35.03)
myopathy in systemic lupus erythematosus (M32.-)

Excludes2 (not included here):

muscular dystrophies and myopathies (G71-G72)

Index terms for M62.03

Entries in the ICD-10-CM alphabetic index that lead to this code:

Diastasis, muscle, forearm

Related codes in M62.0

Frequently asked questions

What is ICD-10 code M62.03?

M62.03 is the ICD-10-CM code for separation of muscle (nontraumatic), forearm, in the block M60-M63 (Disorders of muscles).

Is M62.03 a billable code?

No. M62.03 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M62.03 belong to?

It belongs to category M62 – Other disorders of muscle.

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.