M99.8
M99.8 — Other biomechanical lesions
Non-billable headerICD-10-CM
M99.8 is a non-billable header ICD-10-CM code for other biomechanical lesions. It cannot be billed on its own: choose one of the more specific child codes below.
Risk adjustment
M99.8 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 M99.8
10 child codes. Green means billable.
- M99.80Other biomechanical lesions of head region
- M99.81Other biomechanical lesions of cervical region
- M99.82Other biomechanical lesions of thoracic region
- M99.83Other biomechanical lesions of lumbar region
- M99.84Other biomechanical lesions of sacral region
- M99.85Other biomechanical lesions of pelvic region
- M99.86Other biomechanical lesions of lower extremity
- M99.87Other biomechanical lesions of upper extremity
- M99.88Other biomechanical lesions of rib cage
- M99.89Other biomechanical lesions of abdomen and other regions
Related codes at this level
Codes that share M99. If M99.8 is not quite right, the correct code is usually one of these.
- M99.0Segmental and somatic dysfunction
- M99.1Subluxation complex (vertebral)
- M99.2Subluxation stenosis of neural canal
- M99.3Osseous stenosis of neural canal
- M99.4Connective tissue stenosis of neural canal
- M99.5Intervertebral disc stenosis of neural canal
- M99.6Osseous and subluxation stenosis of intervertebral foramina
- M99.7Connective tissue and disc stenosis of intervertebral foramina
- M99.9Biomechanical lesion, unspecified
Questions about M99.8
- Is M99.8 a billable ICD-10-CM code?
- No. M99.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M99.8 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Biomechanical lesions, not elsewhere classified (M99).