ICD-10-CM 2027 diagnosis code
M65.92Unspecified synovitis and tenosynovitis, upper arm
M65.92 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code last changed in FY2025 (effective October 1, 2024). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M65.92
M65.92 is the ICD-10-CM diagnosis code for unspecified synovitis and tenosynovitis, upper arm. It belongs to category M65 (synovitis and tenosynovitis), block M65-M67 (disorders of synovium and tendon) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within M65.9 (synovitis and tenosynovitis, unspecified), M65.92 is specifically for unspecified synovitis and tenosynovitis, upper arm. Related codes cover unspecified site (M65.90), shoulder (M65.91), forearm (M65.93), hand (M65.94), thigh (M65.95), lower leg (M65.96), ankle and foot (M65.97), other site (M65.98) and 1 more.
To report this condition, pick the subcode that matches the documentation: M65.921 (arm), M65.922 (arm) and M65.929 (arm).
It was added in FY2025, effective October 1, 2024.
Specific codes under M65.92
Notes that apply from higher levels
Instructions written at a parent level also apply to M65.92.
Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to M65.92.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2025 (effective 10/1/2024): Added
- No changes since FY2025.
Common questions about M65.92
Is M65.92 billable?
- No. M65.92 is a header code. Report one of its more specific subcodes instead.