S88 — Traumatic amputation of lower leg
S88 is a non-billable header ICD-10-CM code for traumatic amputation 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 category S88
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- traumatic amputation of ankle and foot (S98.-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- An amputation not identified as partial or complete should be coded to complete
Other codes that can never be billed with S88
These codes carry an Excludes1 note pointing at S88. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S88 alone.
Risk adjustment
S88 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 S88
3 child codes. Green means billable.
Questions about S88
- Is S88 a billable ICD-10-CM code?
- No. S88 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S88 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).
- What cannot be coded together with S88?
- S88 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.