Is M66.8 a billable code?
No. M66.8 is a header code that groups 24 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
M66.8: Spontaneous rupture of other tendons
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
M66.8 groups related diagnoses under spontaneous rupture of other tendons. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under M66.8
- M66.80Spontaneous rupture of other tendons, unspecified site
- M66.811Spontaneous rupture of other tendons, right shoulder
- M66.812Spontaneous rupture of other tendons, left shoulder
- M66.819Spontaneous rupture of other tendons, unspecified shoulder
- M66.821Spontaneous rupture of other tendons, right upper arm
- M66.822Spontaneous rupture of other tendons, left upper arm
- M66.829Spontaneous rupture of other tendons, unspecified upper arm
- M66.831Spontaneous rupture of other tendons, right forearm
- M66.832Spontaneous rupture of other tendons, left forearm
- M66.839Spontaneous rupture of other tendons, unspecified forearm
- M66.841Spontaneous rupture of other tendons, right hand
- M66.842Spontaneous rupture of other tendons, left hand
- M66.849Spontaneous rupture of other tendons, unspecified hand
- M66.851Spontaneous rupture of other tendons, right thigh
- M66.852Spontaneous rupture of other tendons, left thigh
- M66.859Spontaneous rupture of other tendons, unspecified thigh
- M66.861Spontaneous rupture of other tendons, right lower leg
- M66.862Spontaneous rupture of other tendons, left lower leg
- M66.869Spontaneous rupture of other tendons, unspecified lower leg
- M66.871Spontaneous rupture of other tendons, right ankle and foot
- M66.872Spontaneous rupture of other tendons, left ankle and foot
- M66.879Spontaneous rupture of other tendons, unspecified ankle and foot
- M66.88Spontaneous rupture of other tendons, other sites
- M66.89Spontaneous rupture of other tendons, multiple sites
Other codes in M66 Spontaneous rupture of synovium and tendon
M66.8 questions
What does M66.8 mean?
M66.8 is the ICD-10-CM code for Spontaneous rupture of other tendons. It is in chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.