M65.01
⚠ Non-billable (Header)Abscess of tendon sheath, shoulder
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • chronic crepitant synovitis of hand and wrist (M70.0-)
- • current injury - see injury of ligament or tendon by body region
- • soft tissue disorders related to use, overuse and pressure (M70.-)
📋 Code Instructions
inherited- • code (B95-B96) to identify bacterial agent.
Child Codes (3)
Clinical Description
ICD-10-CM code M65.01 represents abscess of tendon sheath, shoulder. This code falls under the Diseases of the musculoskeletal system and connective tissue (M00-M99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 6-character code at the 5th level of specificity. There are 3 more specific child codes under M65.01. Coders should note that M65.01 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code M65.01?
ICD-10-CM code M65.01 is "Abscess of tendon sheath, shoulder". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).
Is M65.01 a billable ICD-10 code?
No, M65.01 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with M65.01?
M65.01 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in M65.0
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)