S88 vs S98
S88 (Traumatic amputation of lower leg) compared with S98 (Traumatic amputation of ankle and foot), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. S88 carries an Excludes1 note covering S98: “traumatic amputation of ankle and foot (S98.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| S88Traumatic amputation of lower leg | S98Traumatic amputation of ankle and foot | |
|---|---|---|
| Billing status | Non-billable header Report instead: S88.011A, S88.011D, S88.011S, S88.012A, S88.012D | Non-billable header Report instead: S98.011A, S98.011D, S98.011S, S98.012A, S98.012D |
| 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). | Traumatic amputation of ankle and foot is a non-billable ICD-10-CM category code (S98). |
| 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 S98 |
| Includes | An amputation not identified as partial or complete should be coded to complete | 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