R51.0

ICD-10Billable

Headache with orthostatic component, NEC

Official ICD-10-CM descriptor (FY2026)

Headache with orthostatic component, not elsewhere classified

R51.0 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Headache with positional component, not elsewhere classified

Related codes in R51

R51.9Headache, unspecified

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: General symptoms and signs (R50-R69)
Parent code: R51

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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.