ICD-10-CM Diagnosis Code (2025)
Official Description for M66
Spontaneous rupture of synovium and tendon
Coding Notes & Guidelines for M66
rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
- rotator cuff syndrome (M75.1-)
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
rupture of popliteal cyst (M66.0)
Rupture of synovial cyst
Rupture at musculotendinous junction, nontraumatic
Child Codes (More Specific Codes for M66):
About ICD-10-CM Code M66 (Spontaneous rupture of synovium and tendon)
ICD-10-CM code M66 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M66 became effective on October 1, 2024.
This page provides detailed information about M66 - Spontaneous rupture of synovium and tendon. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Spontaneous rupture of synovium and tendon.