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ICD-10-CM 2027 diagnosis code

W36.8XXAExplosion and rupture of other gas cylinder, initial encounter

✓ Billable / specificPOA exemptRequires 7th character

W36.8XXA is a valid, billable ICD-10-CM code for explosion and rupture of other gas cylinder, initial encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Explosion and rupture of other gas cylinder, 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 W36.8XXA

W36.8XXA is the ICD-10-CM diagnosis code for explosion and rupture of other gas cylinder, initial encounter. It belongs to category W36 (explosion and rupture of gas cylinder), block W20-W49 (exposure to inanimate mechanical forces) 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 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 E921.1 (accident caused by explosion of gas cylinders).

7th character

Ainitial encounter

Other encounter types for W36.8:

Notes that apply from higher levels

Instructions written at a parent level also apply to W36.8XXA.

ICD-9-CM equivalent

Converter →
  • E921.1Accident caused by explosion of gas cylindersapproximate

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 W36.8XXA

Is W36.8XXA billable?

Yes. W36.8XXA 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 W36.8XXA 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 W36.8XXA be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict W36.8XXA as a principal diagnosis.

Is W36.8XXA a CC or MCC?

No. W36.8XXA is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for W36.8XXA?

The CMS General Equivalence Mappings map W36.8XXA to ICD-9-CM E921.1.