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ICD-10 diagnosis code

G44 Other headache syndromes

This page in Swedish

G44 is the ICD-10 code for Other headache syndromes. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block G40–G47 (Episodic and paroxysmal disorders) in Chapter VI, Diseases of the nervous system.

Code type
Category (3 characters)
Chapter
VI · G00–G99
Classification
WHO ICD-10, 2019 version

What G44 excludes

Conditions that look similar but belong under another code.

  • atypical facial pain G50.1
  • headache NOS R51
  • trigeminal neuralgia G50.0

Subcodes of G44

G44 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

G44Andra huvudvärkssyndrom

DenmarkICD-10-DK

DG44Andre hovedpinesyndromer

FinlandICD-10-FI

G44Muut päänsärkyoireyhtymät

GermanyICD-10-GM

G44Sonstige Kopfschmerzsyndrome

FranceICD-10-FR

G44Autres syndromes d'algies céphaliques

NetherlandsICD-10-NL

G44overige hoofdpijnsyndromen

United StatesICD-10-CM

Listed through more specific codes:

  • G44.51Hemicrania continua
  • G44.52New daily persistent headache (NDPH)
  • G44.53Primary thunderclap headache
  • G44.59Other complicated headache syndrome

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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