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ICD-10-PCS 2027 procedure code

D9040ZZBeam Radiation of Mouth using Photons <1 MeV

✓ Valid for 2027

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About D9040ZZ

D9040ZZ is the ICD-10-PCS code for a beam radiation procedure on the mouth using a photons <1 mev approach with none (qualifier: none).

In plain terms, this corresponds to Orthovoltage radiation and teleradiotherapy using photons, the ICD-9-CM procedure titles it maps to (92.22 and 92.24).

For a different body part, codes include D9000ZZ (ear), D9010ZZ (nose), D9030ZZ (hypopharynx), D9050ZZ (tongue), D9060ZZ (salivary glands), D9070ZZ (sinuses) and 5 more.

The same procedure with a different approach is coded D9041ZZ (photons 1 - 10 mev), D9042ZZ (photons >10 mev), D9043ZZ (electrons), D9044ZZ (heavy particles (protons,ions)), D9045ZZ (neutrons) and D9046ZZ (neutron capture).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
DRadiation Therapy
2. Body System
9Ear, Nose, Mouth and Throat
3. Modality
0Beam Radiation
4. Treatment Site
4Mouth
5. Modality Qualifier
0Photons <1 MeV
6. Isotope
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 92.22Orthovoltage radiationapproximate
  • 92.24Teleradiotherapy using photonsapproximate

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 D9040ZZ

Is D9040ZZ a valid ICD-10-PCS code for 2027?

Yes. D9040ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for D9040ZZ?

The CMS GEMs map D9040ZZ to ICD-9-CM 92.22 (Orthovoltage radiation) and 92.24 (Teleradiotherapy using photons).