S02.601A vs S02.601D

S02.601A (Fracture of unspecified part of body of right mandible, initial encounter for closed fracture) compared with S02.601D (Fracture of unspecified part of body of right mandible, subsequent encounter for fracture with routine healing), from the official CMS tabular data. S02.601A and S02.601D code the same injury at a different phase of treatment.

Relationship

Review

Encounter relationship

S02.601A

Initial encounter

Fracture of unspecified part of body of right mandible, initial encounter for closed fracture

↔

S02.601D

Subsequent encounter

Fracture of unspecified part of body of right mandible, subsequent encounter for fracture with routine healing

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. S02.601A and S02.601D 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

	S02.601AFracture of unspecified part of body of right mandible, initial encounter for closed fracture	S02.601DFracture of unspecified part of body of right mandible, subsequent encounter for fracture with routine healing
Billing status	Billable	Billable
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	Fracture of unspecified part of body of right mandible, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S02.601A).	Fracture of unspecified part of body of right mandible, subsequent encounter for fracture with routine healing is a billable ICD-10-CM diagnosis code (S02.601D).
7th character	The appropriate 7th character is to be added to each code from category S02	The appropriate 7th character is to be added to each code from category S02
Includes	injuries of ear injuries of eye injuries of face [any part] injuries of gum	injuries of ear injuries of eye injuries of face [any part] injuries of gum

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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