S88 vs S90
S88 (Traumatic amputation of lower leg) compared with S90 (Superficial injury of ankle, foot and toes), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. S88 carries an Excludes2 note covering S90: “injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| S88Traumatic amputation of lower leg | S90Superficial injury of ankle, foot and toes | |
|---|---|---|
| Billing status | Non-billable header Report instead: S88.011A, S88.011D, S88.011S, S88.012A, S88.012D | Non-billable header Report instead: S90.00XA, S90.00XD, S90.00XS, S90.01XA, S90.01XD |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Traumatic amputation of lower leg is a non-billable ICD-10-CM category code (S88). | Superficial injury of ankle, foot and toes is a non-billable ICD-10-CM category code (S90). |
| 7th character | The appropriate 7th character is to be added to each code from category S88 | The appropriate 7th character is to be added to each code from category S90 |
| Includes | An amputation not identified as partial or complete should be coded to complete | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources