- G44.40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM G44.40 became effective on October 1, 2022.
- This is the American ICD-10-CM version of G44.40 – other international versions of ICD-10 G44.40 may differ.
ICD-10-CM G44.40 is grouped within Diagnostic Related Group(s):
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to G44.40:
- drug-induced NEC > Headache R51.9
- not intractable > drug-induced NEC G44.40
- medication overuse > Headache R51.9
- not intractable > medication overuse G44.40
- rebound > Headache R51.9
- not intractable > rebound G44.40