M89.0 — Algoneurodystrophy
M89.0 is a non-billable header ICD-10-CM code for algoneurodystrophy. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Shoulder-hand syndrome
- Sudeck's atrophy
Other codes that can never be billed with M89.0
These codes carry an Excludes1 note pointing at M89.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M89.0 alone.
Risk adjustment
M89.0 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 M89.0
10 child codes. Green means billable.
- M89.00Algoneurodystrophy, unspecified site
- M89.01Algoneurodystrophy, shoulder
- M89.02Algoneurodystrophy, upper arm
- M89.03Algoneurodystrophy, forearm
- M89.04Algoneurodystrophy, hand
- M89.05Algoneurodystrophy, thigh
- M89.06Algoneurodystrophy, lower leg
- M89.07Algoneurodystrophy, ankle and foot
- M89.08Algoneurodystrophy, other site
- M89.09Algoneurodystrophy, multiple sites
Related codes at this level
Codes that share M89. If M89.0 is not quite right, the correct code is usually one of these.
Questions about M89.0
- Is M89.0 a billable ICD-10-CM code?
- No. M89.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M89.0 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other osteopathies (M86-M90).
- What cannot be coded together with M89.0?
- M89.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.