M66.129
ICD-10-CMThis code describes a tear or break in the synovial membrane of the elbow joint, where the specific cause or nature of the rupture is not documented. The synovium is a thin membrane lining the joint capsule, responsible for producing synovial fluid that lubricates the joint. A rupture can lead to pain, swelling, and impaired joint function.
Use this code when documentation indicates a rupture of the elbow synovium without further specification of the laterality (right or left) or the specific type of rupture (e.g., traumatic, spontaneous). This code is appropriate when the physician's notes clearly state "rupture of elbow synovium, unspecified" or similar phrasing lacking laterality.
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