R51 Headache
ICD-10-CM category R51 sits in Chapter 18 (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified, R00-R99). It contains 2 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in R51
| Code | Description |
|---|---|
R51.0 | Headache with orthostatic component, not elsewhere classified |
R51.9 | Headache, unspecified |
Search within ICD-10-CM for R51 and related codes
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