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S99.221P vs S99.222P

S99.221P (Salter-Harris Type II physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunion) compared with S99.222P (Salter-Harris Type II physeal fracture of phalanx of left toe, subsequent encounter for fracture with malunion), from the official CMS tabular data. S99.221P and S99.222P code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

S99.221P
Right
Salter-Harris Type II physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunion
S99.222P
Left
Salter-Harris Type II physeal fracture of phalanx of left toe, subsequent encounter for fracture with malunion

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. S99.221P and S99.222P 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

S99.221PSalter-Harris Type II physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunionS99.222PSalter-Harris Type II physeal fracture of phalanx of left toe, subsequent encounter for fracture with malunion
Billing statusBillableBillable
ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionSalter-Harris Type II physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunion is a billable ICD-10-CM diagnosis code (S99.221P).Salter-Harris Type II physeal fracture of phalanx of left toe, subsequent encounter for fracture with malunion is a billable ICD-10-CM diagnosis code (S99.222P).
7th characterThe appropriate 7th character is to be added to each code from subcategories S99.2The appropriate 7th character is to be added to each code from subcategories S99.2

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