S89 — Other and unspecified injuries of lower leg
S89 is a non-billable header ICD-10-CM code for other and unspecified injuries of lower leg. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from subcategories S89.0, S89.1, S89.2, and S89.3
- A
- initial encounter for closed fracture
- D
- subsequent encounter for fracture with routine healing
- G
- subsequent encounter for fracture with delayed healing
- K
- subsequent encounter for fracture with nonunion
- P
- subsequent encounter for fracture with malunion
- S
- sequela
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- other and unspecified injuries of ankle and foot (S99.-)
Notes
Additional guidance from the ICD-10-CM tabular list.
- A fracture not indicated as open or closed should be coded to closed
Other codes that can never be billed with S89
These codes carry an Excludes1 note pointing at S89. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S89 alone.
- S82.5Fracture of medial malleolus
Risk adjustment
S89 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 S89
6 child codes. Green means billable.
Questions about S89
- Is S89 a billable ICD-10-CM code?
- No. S89 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S89 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).