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S00.241S vs S00.242S

S00.241S (External constriction of right eyelid and periocular area, sequela) compared with S00.242S (External constriction of left eyelid and periocular area, sequela), from the official CMS tabular data. S00.241S and S00.242S code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

S00.241S
Right
External constriction of right eyelid and periocular area, sequela
S00.242S
Left
External constriction of left eyelid and periocular area, sequela

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. S00.241S and S00.242S 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

S00.241SExternal constriction of right eyelid and periocular area, sequelaS00.242SExternal constriction of left eyelid and periocular area, sequela
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)
DefinitionExternal constriction of right eyelid and periocular area, sequela is a billable ICD-10-CM diagnosis code (S00.241S).External constriction of left eyelid and periocular area, sequela is a billable ICD-10-CM diagnosis code (S00.242S).
7th characterThe appropriate 7th character is to be added to each code from category S00The appropriate 7th character is to be added to each code from category S00
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