M99.1
M99.1 — Subluxation complex (vertebral)
Non-billable headerICD-10-CM
M99.1 is a non-billable header ICD-10-CM code for subluxation complex (vertebral). It cannot be billed on its own: choose one of the more specific child codes below.
Risk adjustment
M99.1 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 M99.1
10 child codes. Green means billable.
- M99.10Subluxation complex (vertebral) of head region
- M99.11Subluxation complex (vertebral) of cervical region
- M99.12Subluxation complex (vertebral) of thoracic region
- M99.13Subluxation complex (vertebral) of lumbar region
- M99.14Subluxation complex (vertebral) of sacral region
- M99.15Subluxation complex (vertebral) of pelvic region
- M99.16Subluxation complex (vertebral) of lower extremity
- M99.17Subluxation complex (vertebral) of upper extremity
- M99.18Subluxation complex (vertebral) of rib cage
- M99.19Subluxation complex (vertebral) of abdomen and other regions
Related codes at this level
Codes that share M99. If M99.1 is not quite right, the correct code is usually one of these.
- M99.0Segmental and somatic dysfunction
- 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
- M99.8Other biomechanical lesions
- M99.9Biomechanical lesion, unspecified
Questions about M99.1
- Is M99.1 a billable ICD-10-CM code?
- No. M99.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M99.1 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Biomechanical lesions, not elsewhere classified (M99).