ICD-10-CM 2027 diagnosis code
G44.2Tension-type headache
G44.2 is a header code, so it can't be reported by itself. Choose one of the 3 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 G44.2
G44.2 is the ICD-10-CM diagnosis code for tension-type headache. 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 3 subcodes must be used instead.
Within G44 (other headache syndromes), G44.2 is specifically for tension-type headache. Related codes cover cluster headaches and other trigeminal autonomic cephalgias (TAC) (G44.0), vascular headache, not elsewhere classified (G44.1), post-traumatic headache (G44.3), drug-induced headache, not elsewhere classified (G44.4), complicated headache syndromes (G44.5) and other specified headache syndromes (G44.8).
To report this condition, pick the subcode that matches the documentation: G44.20 (unspecified), G44.21 (headache) and G44.22 (headache).
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 G44.2
Notes that apply from higher levels
Instructions written at a parent level also apply to G44.2.
› From G44 Other headache syndromes
Broader instructions also apply from Chapter 6: Diseases of the nervous system.
Codes whose notes reference G44.2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about G44.2
Is G44.2 billable?
- No. G44.2 is a header code. Report one of its more specific subcodes instead.