G44.32

Non-Billable
ChapterG00–G99
Ranksubcategory
Official Description

Chronic post-traumatic headache

Metadata & Insights
  • 2026 ICD-10-CM Edition - Effective October 1, 2025.
  • Non-billable category (requires more specific sub-code).
  • Chapter 6: Diseases of the Nervous System (G00-G99).
General instructions are available for the parent sections:

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)
G40-G47Episodic and paroxysmal disorders (G40-G47)
G44Other headache syndromes
G44.3Post-traumatic headache
G44.32Chronic post-traumatic headache
G44.321Chronic post-traumatic headache, intractable
G44.329Chronic post-traumatic headache, not intractable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G44.32:

categoryG44
Other headache syndromes
View context instructions
chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G44.32. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

3 raw paths

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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