I69 vs R27.0
I69 (Sequelae of cerebrovascular disease) compared with R27.0 (Ataxia, unspecified), 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. R27.0 carries an Excludes1 note covering I69: “ataxia following cerebrovascular disease (I69. with final characters -93)”
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
| I69Sequelae of cerebrovascular disease | R27.0Ataxia, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Sequelae of cerebrovascular disease is a non-billable ICD-10-CM category code (I69). | Ataxia, unspecified is a billable ICD-10-CM diagnosis code (R27.0). |
| Use additional code | code to identify presence of: alcohol abuse and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources