2025 ICD-10-CM Diagnosis Code M65.961
Unspecified synovitis and tenosynovitis, right lower leg
- ICD-10-CM Code:
- M65.961
- ICD-10 Code for:
- Unspecified synovitis and tenosynovitis, right lower leg
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
M65.961 is a billable diagnosis code used to specify a medical diagnosis of unspecified synovitis and tenosynovitis, right lower leg. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.
Unspecified diagnosis codes like M65.961 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
New 2025 ICD-10-CM Code
M65.961 is new to ICD-10-CM code set for the FY 2025, effective October 1, 2024. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2024. This is a new and revised code for the FY 2025 (October 1, 2024 - September 30, 2025).
Replacement Code
M65961 replaces the following previously assigned ICD-10-CM code(s):
- M65.9 - Synovitis and tenosynovitis, unspecified
