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ICD-10-CM 2027 diagnosis code

X08.8XXAExposure to other specified smoke, fire and flames, initial encounter

✓ Billable / specificRequires 7th character

X08.8XXA is a valid, billable ICD-10-CM code for exposure to other specified smoke, fire and flames, initial encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Exposure to oth smoke, fire and flames, init encntr

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 X08.8XXA

X08.8XXA is the ICD-10-CM diagnosis code for exposure to other specified smoke, fire and flames, initial encounter. It belongs to category X08 (exposure to other specified smoke, fire and flames), 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 "A" means initial encounter: use it while the patient is receiving active treatment for the condition.

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

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 E898.1 (accident caused by other burning materials).

7th character

Ainitial encounter

Other encounter types for X08.8:

Notes that apply from higher levels

Instructions written at a parent level also apply to X08.8XXA.

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 →
  • E898.1Accident caused by other burning materialsapproximate

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 X08.8XXA

Is X08.8XXA billable?

Yes. X08.8XXA is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "A" at the end of X08.8XXA mean?

It is the 7th character for initial encounter. Per the official guidelines, use it while the patient is receiving active treatment for the condition.

Can X08.8XXA be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict X08.8XXA as a principal diagnosis.

Is X08.8XXA a CC or MCC?

No. X08.8XXA is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for X08.8XXA?

The CMS General Equivalence Mappings map X08.8XXA to ICD-9-CM E898.1.