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S37.031A vs S37.031D

S37.031A (Laceration of right kidney, unspecified degree, initial encounter) compared with S37.031D (Laceration of right kidney, unspecified degree, subsequent encounter), from the official CMS tabular data. S37.031A and S37.031D code the same injury at a different phase of treatment.

Can these codes be reported together?

Same injury, other encounter phase. S37.031A and S37.031D 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

S37.031ALaceration of right kidney, unspecified degree, initial encounterS37.031DLaceration of right kidney, unspecified degree, 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)
DefinitionLaceration of right kidney, unspecified degree, initial encounter is a billable ICD-10-CM diagnosis code (S37.031A).Laceration of right kidney, unspecified degree, subsequent encounter is a billable ICD-10-CM diagnosis code (S37.031D).
7th characterThe appropriate 7th character is to be added to each code from category S37The appropriate 7th character is to be added to each code from category S37
Includes
injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia
injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia

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