Skip to main content

S88.112A vs S88.112S

S88.112A (Complete traumatic amputation at level between knee and ankle, left lower leg, initial encounter) compared with S88.112S (Complete traumatic amputation at level between knee and ankle, left lower leg, sequela), from the official CMS tabular data. S88.112A and S88.112S code the same injury at a different phase of treatment.

Relationship

Review

Encounter relationship

S88.112A
Initial encounter
Complete traumatic amputation at level between knee and ankle, left lower leg, initial encounter
↔
S88.112S
Sequela
Complete traumatic amputation at level between knee and ankle, left lower leg, sequela

Same underlying diagnosis, different encounter phase.

The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.

Source: ICD-10-CM Official Guidelines, Section I.C.19.a

Can these codes be reported together?

Same injury, other encounter phase. S88.112A and S88.112S code the same injury at a different phase of treatment, set by the 7th character.

The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.

Side by side

S88.112AComplete traumatic amputation at level between knee and ankle, left lower leg, initial encounterS88.112SComplete traumatic amputation at level between knee and ankle, left lower leg, sequela
Billing statusBillableBillable
ClassificationS00-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)
DefinitionComplete traumatic amputation at level between knee and ankle, left lower leg, initial encounter is a billable ICD-10-CM diagnosis code (S88.112A).Complete traumatic amputation at level between knee and ankle, left lower leg, sequela is a billable ICD-10-CM diagnosis code (S88.112S).
7th characterThe appropriate 7th character is to be added to each code from category S88The appropriate 7th character is to be added to each code from category S88
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources