M66.1 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Rupture of synovium.
Inclusion term
Rupture of synovial cyst
Type 2 excludes
Rupture of popliteal cyst (M66.0)
Codes
M66.10
Rupture of synovium, unspecified joint
M66.11
Rupture of synovium, shoulder
M66.12
Rupture of synovium, elbow
M66.13
Rupture of synovium, wrist
M66.14
Rupture of synovium, hand and fingers
M66.15
Rupture of synovium, hip
M66.17
Rupture of synovium, ankle, foot and toes
M66.18
Rupture of synovium, other site
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code