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ICD-10-CM 2027 diagnosis code

X03.0XXSExposure to flames in controlled fire, not in building or structure, sequela

✓ Billable / specificPOA exemptRequires 7th character

X03.0XXS is a valid, billable ICD-10-CM code for exposure to flames in controlled fire, not in building or structure, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Exposure to flames in controlled fire, not in bldg, sequela

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 X03.0XXS

X03.0XXS is the ICD-10-CM diagnosis code for exposure to flames in controlled fire, not in building or structure, sequela. It belongs to category X03 (exposure to controlled fire, not in building or structure), block X00-X08 (exposure to smoke, fire and flames) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.

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

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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 E929.4 (late effects of accident caused by fire).

7th character

Ssequela

Other encounter types for X03.0:

Notes that apply from higher levels

Instructions written at a parent level also apply to X03.0XXS.

› From X03 Exposure to controlled fire, not in building or structure
Includes
  • exposure to bon fire
  • exposure to camp-fire
  • exposure to trash fire

Broader instructions also apply from X00-X08 Exposure to smoke, fire and flames and Chapter 20: External causes of morbidity.

ICD-9-CM equivalent

Converter →
  • E929.4Late effects of accident caused by fireapproximate

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 X03.0XXS

Is X03.0XXS billable?

Yes. X03.0XXS is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "S" at the end of X03.0XXS mean?

It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.

Can X03.0XXS be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict X03.0XXS as a principal diagnosis.

Is X03.0XXS a CC or MCC?

No. X03.0XXS is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for X03.0XXS?

The CMS General Equivalence Mappings map X03.0XXS to ICD-9-CM E929.4.