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S02.400A vs S02.40AA

S02.400A (Malar fracture, unspecified side, initial encounter for closed fracture) compared with S02.40AA (Malar fracture, right side, initial encounter for closed fracture), from the official CMS tabular data. S02.400A and S02.40AA code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S02.400A
Unspecified
Malar fracture, unspecified side, initial encounter for closed fracture
S02.40AA
Right
Malar fracture, right side, initial encounter for closed fracture

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S02.400A and S02.40AA name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S02.400AMalar fracture, unspecified side, initial encounter for closed fractureS02.40AAMalar fracture, right side, initial encounter for closed fracture
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)
DefinitionMalar fracture, unspecified side, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S02.400A).Malar fracture, right side, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S02.40AA).
7th characterThe appropriate 7th character is to be added to each code from category S02The 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

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