M46
M46 — Other inflammatory spondylopathies
Non-billable headerICD-10-CM
M46 is a non-billable header ICD-10-CM code for other inflammatory spondylopathies. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with M46
These codes carry an Excludes1 note pointing at M46. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M46 alone.
- G55Nerve root and plexus compressions in diseases classified elsewhere
Risk adjustment
M46 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 M46
8 child codes. Green means billable.
Questions about M46
- Is M46 a billable ICD-10-CM code?
- No. M46 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M46 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Spondylopathies (M45-M49).