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S79.109A vs S79.109G

S79.109A (Unspecified physeal fracture of lower end of unspecified femur, initial encounter for closed fracture) compared with S79.109G (Unspecified physeal fracture of lower end of unspecified femur, subsequent encounter for fracture with delayed healing), from the official CMS tabular data. S79.109A and S79.109G code the same injury at a different phase of treatment.

Relationship

Review

Encounter relationship

S79.109A
Initial encounter
Unspecified physeal fracture of lower end of unspecified femur, initial encounter for closed fracture
S79.109G
Subsequent encounter
Unspecified physeal fracture of lower end of unspecified femur, subsequent encounter for fracture with delayed 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. S79.109A and S79.109G 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

S79.109AUnspecified physeal fracture of lower end of unspecified femur, initial encounter for closed fractureS79.109GUnspecified physeal fracture of lower end of unspecified femur, subsequent encounter for fracture with delayed healing
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)
DefinitionUnspecified physeal fracture of lower end of unspecified femur, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S79.109A).Unspecified physeal fracture of lower end of unspecified femur, subsequent encounter for fracture with delayed healing is a billable ICD-10-CM diagnosis code (S79.109G).
7th characterThe appropriate 7th character is to be added to each code from subcategories S79.0 and S79.1The appropriate 7th character is to be added to each code from subcategories S79.0 and S79.1

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