G30 vs R41.81
G30 (Alzheimer's disease) compared with R41.81 (Age-related cognitive decline), 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. G30 carries an Excludes1 note covering R41.81: “senility NOS (R41.81)”
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
| G30Alzheimer's disease | R41.81Age-related cognitive decline | |
|---|---|---|
| Billing status | Non-billable header | 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 | Alzheimer's disease is a non-billable ICD-10-CM category code (G30). | Age-related cognitive decline is a billable ICD-10-CM diagnosis code (R41.81). |
| Includes | Alzheimer's dementia senile and presenile forms | Senility NOS |
| Use additional code | code, if applicable, to identify: delirium, if applicable (F05) dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources