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ICD-10-CM Current in FY 2027

G44.009

Cluster headache syndrome, unspecified, not intractable

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where G44.009 sits in the official hierarchy. Each level is the code it is classified under.

  1. G44 Other headache syndromes
  2. G44.0 Cluster headaches and other trigeminal autonomic cephalgias (TAC)
  3. G44.00 Parent Cluster headache syndrome, unspecified
  4. G44.009 This code Cluster headache syndrome, unspecified, not intractable

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Cluster headache syndrome NOS

Excludes1

headache NOS ( R51.9 )

Inherited from G44 — Other headache syndromes

Excludes2

atypical facial pain ( G50.1 )

Inherited from G44 — Other headache syndromes

Excludes2

headache due to lumbar puncture ( G97.1 )

Inherited from G44 — Other headache syndromes

Excludes2

migraines ( G43 .-)

Inherited from G44 — Other headache syndromes

Excludes2

trigeminal neuralgia ( G50.0 )

Inherited from G44 — Other headache syndromes

Version History

How G44.009 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Cluster headache syndrome, unspecified, not intractable

  2. FY 2026 Effective

    Unchanged

    Cluster headache syndrome, unspecified, not intractable

Related Codes

Other codes under G44.00

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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