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S68.511A vs S68.511D

S68.511A (Complete traumatic transphalangeal amputation of right thumb, initial encounter) compared with S68.511D (Complete traumatic transphalangeal amputation of right thumb, subsequent encounter), from the official CMS tabular data. S68.511A and S68.511D code the same injury at a different phase of treatment. MedCoder-derived

Relationship

Review

Encounter relationship

S68.511A
Initial encounter
Complete traumatic transphalangeal amputation of right thumb, initial encounter
↔
S68.511D
Subsequent encounter
Complete traumatic transphalangeal amputation of right thumb, 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. S68.511A and S68.511D 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

S68.511AComplete traumatic transphalangeal amputation of right thumb, initial encounterS68.511DComplete traumatic transphalangeal amputation of right thumb, 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)
DefinitionComplete traumatic transphalangeal amputation of right thumb, initial encounter is a billable ICD-10-CM diagnosis code (S68.511A).Complete traumatic transphalangeal amputation of right thumb, subsequent encounter is a billable ICD-10-CM diagnosis code (S68.511D).
7th characterThe appropriate 7th character is to be added to each code from category S68The appropriate 7th character is to be added to each code from category S68
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources