Alphabetic Index · main term

Headache

FY2027Index: Hb–He /Alphabetic Index

At the main termR51.9

Headache is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists R51.9 for the term on its own. It has 84 subterms and 81 code entries. First-level subterms include with, allergic NEC, associated with sexual activity, cervicogenic, chronic daily, cluster, cough, daily chronic and more. Confirm any code you find here in the Tabular List before you report it.

Subterms 84

with
- orthostatic component NECR51.0
- positional component NECR51.0
allergic NECG44.89
associated with sexual activityG44.82
cervicogenicG44.86
chronic dailyR51.9
clusterG44.009
- chronicG44.029
  - intractableG44.021
  - not intractableG44.029
- episodicG44.019
  - intractableG44.011
  - not intractableG44.019
- intractableG44.001
- not intractableG44.009
cough (primary)G44.83
daily chronicR51.9
drug-induced NECG44.40
- intractableG44.41
- not intractableG44.40
exertional (primary)G44.84
histamineG44.009
- intractableG44.001
- not intractableG44.009
hypnicG44.81
lumbar punctureG97.1
medication overuseG44.40
- intractableG44.41
- not intractableG44.40
menstrual see Migraine, menstrual
migraine (type) see also MigraineG43.909
nasal septumR51.9
neuralgiform, short lasting unilateral, with conjunctival injection and tearing (SUNCT)G44.059
- intractableG44.051
- not intractableG44.059
new daily persistent (NDPH)G44.52
orgasmicG44.82
periodic syndromes in adults and childrenG43.C0
- with refractory migraineG43.C1
- intractableG43.C1
- not intractableG43.C0
- without refractory migraineG43.C0
postspinal punctureG97.1
post-traumaticG44.309
- acuteG44.319
  - intractableG44.311
  - not intractableG44.319
- chronicG44.329
  - intractableG44.321
  - not intractableG44.329
- intractableG44.301
- not intractableG44.309
pre-menstrual see Migraine, menstrual
preorgasmicG44.82
primary
- coughG44.83
- exertionalG44.84
- stabbingG44.85
- thunderclapG44.53
reboundG44.40
- intractableG44.41
- not intractableG44.40
short lasting unilateral neuralgiform, with conjunctival injection and tearing (SUNCT)G44.059
- intractableG44.051
- not intractableG44.059
specified syndrome NECG44.89
spinal and epidural anesthesia - inducedT88.59
- in labor and deliveryO74.5
- in pregnancyO29.4-
- postpartum, puerperalO89.4
spinal fluid loss (from puncture)G97.1
stabbing (primary)G44.85
tension (-type)G44.209
- chronicG44.229
  - intractableG44.221
  - not intractableG44.229
- episodicG44.219
  - intractableG44.211
  - not intractableG44.219
- intractableG44.201
- not intractableG44.209
thunderclap (primary)G44.53
vascular NECG44.1