G44.81

Hypnic headache

Billable / specific

G44.81 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Excludes1

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

headache with orthostatic or positional component, not elsewhere classified (R51.0) (from G44.8)
certain conditions originating in the perinatal period (P04-P96) (from G44)
certain infectious and parasitic diseases (A00-B99) (from G44)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G44)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G44)
endocrine, nutritional and metabolic diseases (E00-E88) (from G44)
injury, poisoning and certain other consequences of external causes (S00-T88) (from G44)
neoplasms (C00-D49) (from G44)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G44)
atypical facial pain (G50.1) (from G44)
headache due to lumbar puncture (G97.1) (from G44)
migraines (G43.-) (from G44)
trigeminal neuralgia (G50.0) (from G44)