M19

Non-billable

Other and unspecified osteoarthritis

M19 is the ICD-10-CM code for Other and unspecified osteoarthritis. It is a non-billable category code — use a more specific child code such as M19.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
4
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not coded here

  • polyarthritis (M15.-)

Excludes2 — not included here

  • arthrosis of spine (M47.-)
  • hallux rigidus (M20.2)
  • osteoarthritis of spine (M47.-)

Frequently asked questions

What is ICD-10 code M19?
M19 is the ICD-10-CM code for "Other and unspecified osteoarthritis". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M19 a billable code?
No — M19 is a non-billable header code. Use a more specific child code (such as M19.0) for billing.
What are the subcodes of M19?
M19 has 4 more specific child codes, including M19.0, M19.1, M19.2.
What is excluded from M19?
Excludes1 (not coded here): polyarthritis (M15.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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