ICD-10-CM 2027 diagnosis code
G44.30Post-traumatic headache, unspecified
G44.30 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About G44.30
G44.30 is the ICD-10-CM diagnosis code for post-traumatic headache, unspecified. It belongs to category G44 (other headache syndromes), block G40-G47 (episodic and paroxysmal disorders) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.
Within G44.3, choose G44.30 (unspecified) only when documentation doesn't support a more specific option: acute post-traumatic headache (G44.31) and chronic post-traumatic headache (G44.32).
To report this condition, pick the subcode that matches the documentation: G44.301 (intractable) and G44.309 (not intractable).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under G44.30
Notes that apply from higher levels
Instructions written at a parent level also apply to G44.30.
› From G44 Other headache syndromes
Broader instructions also apply from Chapter 6: Diseases of the nervous system.
Code history
- 2016
- 2017
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- 2021
- 2022
- 2023
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- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about G44.30
Is G44.30 billable?
- No. G44.30 is a header code. Report one of its more specific subcodes instead.