M65.0 ICD-10-CM Code: Abscess of tendon sheath
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
M65.0Abscess of tendon sheath
ICD-10-CM diagnosis code · United States clinical modification
Where M65.0 sits
- 1
Chapter 13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2
Section
Disorders of synovium and tendon (M65-M67)
- 3
Category M65
Synovitis and tenosynovitis
- 4
Code M65.0
Abscess of tendon sheath
Codes under M65.0
M65.0 is a non-billable category. Choose the child code that best matches the documented diagnosis.
M65.00Abscess of tendon sheath, unspecified siteM65.01Abscess of tendon sheath, shoulderM65.02Abscess of tendon sheath, upper armM65.03Abscess of tendon sheath, forearmM65.04Abscess of tendon sheath, handM65.05Abscess of tendon sheath, thighM65.06Abscess of tendon sheath, lower legM65.07Abscess of tendon sheath, ankle and footM65.08Abscess of tendon sheath, other siteNotes for this code
Inclusion terms
No inclusion terms are listed for M65.0.
Code first
No “code first” instruction is listed for M65.0.
Use additional code
- code (B95-B96) to identify bacterial agent.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for M65.0.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for M65.0.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code M65.0 mean?
M65.0 is the FY 2027 U.S. ICD-10-CM code for “Abscess of tendon sheath.”
Is M65.0 a billable or specific ICD-10-CM code?
No. M65.0 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is M65.0 located in ICD-10-CM?
M65.0 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Disorders of synovium and tendon (M65-M67) (M65–M67), under category M65, Synovitis and tenosynovitis.
What coding notes are listed for M65.0?
No inclusion terms are listed for M65.0 in this reference record. No code-first instruction is listed. Additional-code instructions: code (B95-B96) to identify bacterial agent.. No Excludes1 note is listed. No Excludes2 note is listed.