M65.8
M65.8 — Other synovitis and tenosynovitis
Non-billable headerICD-10-CM
M65.8 is a non-billable header ICD-10-CM code for other synovitis and tenosynovitis. It cannot be billed on its own: choose one of the more specific child codes below.
Risk adjustment
M65.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead M65.8
10 child codes. Green means billable.
- M65.80Other synovitis and tenosynovitis, unspecified site
- M65.81Other synovitis and tenosynovitis, shoulder
- M65.82Other synovitis and tenosynovitis, upper arm
- M65.83Other synovitis and tenosynovitis, forearm
- M65.84Other synovitis and tenosynovitis, hand
- M65.85Other synovitis and tenosynovitis, thigh
- M65.86Other synovitis and tenosynovitis, lower leg
- M65.87Other synovitis and tenosynovitis, ankle and foot
- M65.88Other synovitis and tenosynovitis, other site
- M65.89Other synovitis and tenosynovitis, multiple sites
Related codes at this level
Codes that share M65. If M65.8 is not quite right, the correct code is usually one of these.
Questions about M65.8
- Is M65.8 a billable ICD-10-CM code?
- No. M65.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M65.8 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Disorders of synovium and tendon (M65-M67).