M17.3 — Unilateral post-traumatic osteoarthritis of knee
M17.3 is a non-billable header ICD-10-CM code for unilateral post-traumatic osteoarthritis of knee. It cannot be billed on its own: choose one of the more specific child codes below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Post-traumatic osteoarthritis of knee NOS
Other codes that can never be billed with M17.3
These codes carry an Excludes1 note pointing at M17.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M17.3 alone.
- M12.5Traumatic arthropathy
Risk adjustment
M17.3 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 M17.3
3 child codes. Green means billable.
Related codes at this level
Codes that share M17. If M17.3 is not quite right, the correct code is usually one of these.
Questions about M17.3
- Is M17.3 a billable ICD-10-CM code?
- No. M17.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M17.3 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Osteoarthritis (M15-M19).