R41.9

ICD-10Billable

Unsp symptoms and signs w cognitive functions and awareness

Official ICD-10-CM descriptor (FY2026)

Unspecified symptoms and signs involving cognitive functions and awareness

R41.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Unspecified neurocognitive disorder

Related codes in R41

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Parent code: R41

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.