M65.0

Non-billable

Abscess of tendon sheath

M65.0 is the ICD-10-CM code for Abscess of tendon sheath. It is a non-billable category code — use a more specific child code such as M65.00 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M65
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Use additional code

  • code (B95-B96) to identify bacterial agent.

Frequently asked questions

What is ICD-10 code M65.0?
M65.0 is the ICD-10-CM code for "Abscess of tendon sheath". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M65.0 a billable code?
No — M65.0 is a non-billable header code. Use a more specific child code (such as M65.00) for billing.
What are the subcodes of M65.0?
M65.0 has 9 more specific child codes, including M65.00, M65.01, M65.02.

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

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