Skip to main content

S81.839A vs S81.839D

S81.839A (Puncture wound without foreign body, unspecified lower leg, initial encounter) compared with S81.839D (Puncture wound without foreign body, unspecified lower leg, subsequent encounter), from the official CMS tabular data. S81.839A and S81.839D code the same injury at a different phase of treatment.

Relationship

Review

Encounter relationship

S81.839A
Initial encounter
Puncture wound without foreign body, unspecified lower leg, initial encounter
↔
S81.839D
Subsequent encounter
Puncture wound without foreign body, unspecified lower leg, subsequent encounter

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. S81.839A and S81.839D 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

S81.839APuncture wound without foreign body, unspecified lower leg, initial encounterS81.839DPuncture wound without foreign body, unspecified lower leg, subsequent encounter
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)
DefinitionPuncture wound without foreign body, unspecified lower leg, initial encounter is a billable ICD-10-CM diagnosis code (S81.839A).Puncture wound without foreign body, unspecified lower leg, subsequent encounter is a billable ICD-10-CM diagnosis code (S81.839D).
7th characterThe appropriate 7th character is to be added to each code from category S81The appropriate 7th character is to be added to each code from category S81
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