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ICD-10-CM 2027 diagnosis code

G44.209Tension-type headache, unspecified, not intractable

✓ Billable / specific

G44.209 is a valid, billable ICD-10-CM code for tension-type headache, unspecified, not intractable. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Headache tension.

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 G44.209

G44.209 is the ICD-10-CM diagnosis code for tension-type headache, unspecified, not intractable. 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within G44.20 (tension-type headache, unspecified), G44.209 is specifically for tension-type headache, unspecified, not intractable. Related codes cover intractable (G44.201).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 102 (Headaches with MCC, relative weight 1.1201) and DRG 103 (Headaches without MCC, relative weight 0.822), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 307.81 (tension headache) and 339.10 (tension type headache, unspecified).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Tension headache NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to G44.209.

› From G44 Other headache syndromes
Excludes1
Excludes2
  • atypical facial pain (G50.1)
  • headache due to lumbar puncture (G97.1)
  • migraines (G43.-)
  • trigeminal neuralgia (G50.0)

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to G44.209.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 01 · Diseases and Disorders of the Nervous System

ICD-9-CM equivalent

Converter →
  • 307.81Tension headacheapproximate
  • 339.10Tension type headache, unspecifiedapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about G44.209

Is G44.209 billable?

Yes. G44.209 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G44.209 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G44.209 as a principal diagnosis.

Is G44.209 a CC or MCC?

No. G44.209 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does G44.209 group to?

G44.209 is used in the MS-DRG v44.0 logic for MS-DRG 102 (Headaches with MCC) and MS-DRG 103 (Headaches without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for G44.209?

The CMS General Equivalence Mappings map G44.209 to ICD-9-CM 307.81 and 339.10.