R51.0 Headache with orthostatic component, not elsewhere classified

Billable ICD-10-CM code, FY2026.

Applicable to

• Headache with positional component, not elsewhere classified

Applies from R51 Headache

Excludes2 (not included here)

• atypical face pain (G50.1)
• migraine and other headache syndromes (G43-G44)
• trigeminal neuralgia (G50.0)

MS-DRG index

Defines the logic of DRG(s) 102-103 in MDC 01.

Code annotations containing back-references to R51.0

Back-references to R51.0

• Type 2 Excludes: G44.8 Other specified headache syndromes ("headache with orthostatic or positional component, not elsewhere classified (R51.0)")
• Code Also: G97.1 Other reaction to spinal and lumbar puncture (", if applicable, any associated headache with orthostatic component (R51.0)")

Diagnosis Index entries for R51.0

• Headache › with › orthostatic component NEC
• Headache › with › positional component NEC

Nearby codes

• R51 Headache
• R51.0 Headache with orthostatic component, not elsewhere classified (this code)
• R51.9 Headache, unspecified