G45.9 vs R29.5
G45.9 (Transient cerebral ischemic attack, unspecified) compared with R29.5 (Transient paralysis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. R29.5 carries an Excludes1 note covering G45.9: “transient ischemic attack (G45.9)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G45.9Transient cerebral ischemic attack, unspecified | R29.5Transient paralysis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Transient cerebral ischemic attack, unspecified is a billable ICD-10-CM diagnosis code (G45.9). | Transient paralysis is a billable ICD-10-CM diagnosis code (R29.5). |
| Includes | Spasm of cerebral artery TIA Transient cerebral ischemia NOS | — |
| Code first | — | any associated spinal cord injury (S14.0, S14.1-, S24.0, S24.1-, S34.0-, S34.1-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources