ICD-10-CM 2027
ICD-10 code for limb pain
From the official ICD-10-CM alphabetic index entry “Pain (s) › limb”. Page updated September 29, 2026.
About coding limb pain
The ICD-10-CM code for limb pain is M79.609 (Pain in unspecified limb). The official index lists 11 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M79.609.
Within M79.60, choose M79.609 (unspecified limb) only when documentation doesn't support a more specific option: right arm (M79.601), left arm (M79.602), arm, unspecified (M79.603), right leg (M79.604), left leg (M79.605) and leg, unspecified (M79.606).
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 555 (Signs and Symptoms of Musculoskeletal System and Connective Tissue with MCC, relative weight 1.2913) and DRG 556 (Signs and Symptoms of Musculoskeletal System and Connective Tissue without MCC, relative weight 0.8211), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), 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 limb pain codes (official index)
- lower M79.60 — Pain in limb, unspecified
- foot M79.67 — Pain in foot and toes
- lower leg M79.66 — Pain in lower leg
- thigh M79.65 — Pain in thigh
- toe M79.67 — Pain in foot and toes
- upper M79.60 — Pain in limb, unspecified
- axilla M79.62 — Pain in upper arm
- finger M79.64 — Pain in hand and fingers
- forearm M79.63 — Pain in forearm
- hand M79.64 — Pain in hand and fingers
- upper arm M79.62 — Pain in upper arm
Common questions about limb pain ICD-10 codes
What is the ICD-10 code for limb pain?
- M79.609 — Pain in unspecified limb. More specific codes apply when the documentation supports them: M79.60, M79.67, M79.66, M79.65 and others below.
What is the ICD-10 code for lower limb pain?
- M79.60 — Pain in limb, unspecified (header code; choose a more specific subcode).
What is the ICD-10 code for upper limb pain?
- M79.60 — Pain in limb, unspecified (header code; choose a more specific subcode).
Is M79.609 billable?
- Yes. M79.609 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M79.609 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M79.609 as a principal diagnosis.
Is M79.609 a CC or MCC?
- No. M79.609 is neither a CC nor an MCC under MS-DRG v44.0.