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ICD10

ICD-10 Code G44.8: Other specified headache syndromes

G44.8 is an ICD-10 diagnosis entry used to group records related to Other specified headache syndromes. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

When is it used?

  • May be used when a clinician documents other specified headache syndromes in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
6Diseases of the nervous system (G00-G99)
block
G40-G47Episodic and paroxysmal disorders
category
G44Other headache syndromes
currentG44

Official coding notes

Excludes2 (may code together if documented)
  • headache with orthostatic or positional component, not elsewhere classified (R51.0)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

NeurologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
G44.8
Replacement codes
G44.81 — Hypnic headacheG44.82 — Headache associated with sexual activityG44.83 — Primary cough headacheG44.84 — Primary exertional headacheG44.85 — Primary stabbing headacheG44.86 — Cervicogenic headacheG44.89 — Other headache syndrome

Common synonyms

Other specified headache syndromes

Frequently asked questions

Code details

CodeG44.8
SystemICD10
Display nameOther specified headache syndromes
ChapterDiseases of the nervous system (G00-G99)
BlockEpisodic and paroxysmal disorders

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code G44.8 for Other specified headache syndromes | HealthAssure