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G81.11 vs G81.12

G81.11 (Spastic hemiplegia affecting right dominant side) compared with G81.12 (Spastic hemiplegia affecting left dominant side), from the official CMS tabular data. G81.11 and G81.12 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

G81.11
Right
Spastic hemiplegia affecting right dominant side
G81.12
Left
Spastic hemiplegia affecting left dominant side

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. G81.11 and G81.12 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

G81.11Spastic hemiplegia affecting right dominant sideG81.12Spastic hemiplegia affecting left dominant side
Billing statusBillableBillable
ClassificationG00-G99 — Diseases of the Nervous System (G00-G99)G00-G99 — Diseases of the Nervous System (G00-G99)
DefinitionSpastic hemiplegia affecting right dominant side is a billable ICD-10-CM diagnosis code (G81.11).Spastic hemiplegia affecting left dominant side is a billable ICD-10-CM diagnosis code (G81.12).

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