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ICD-10-CM 2027 diagnosis code

T31.22Burns involving 20-29% of body surface with 20-29% third degree burns

✓ Billable / specificMCC — major complication/comorbidity

T31.22 is a valid, billable ICD-10-CM code for burns involving 20-29% of body surface with 20-29% third degree burns. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Burns of 20-29% of body surface w 20-29% third degree burns

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 T31.22

T31.22 is the ICD-10-CM diagnosis code for burns involving 20-29% of body surface with 20-29% third degree burns. It belongs to category T31 (burns classified according to extent of body surface involved), block T30-T32 (burns and corrosions of multiple and unspecified body regions) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within T31.2 (burns involving 20-29% of body surface), T31.22 is specifically for burns involving 20-29% of body surface with 20-29% third degree burns. Related codes cover with 0% to 9% third degree burns (T31.20) and with 10-19% third degree burns (T31.21).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 927 (Extensive Burns or Full Thickness Burns with MV >96 Hours with Skin Graft, relative weight 27.846) and DRG 933 (Extensive Burns or Full Thickness Burns with MV >96 Hours without Skin Graft, relative weight 3.5048), in MDC 22 (Burns), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

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 948.22 (burn [any degree] involving 20-29 percent of body surface with third degree burn, 20-29%).

Notes that apply from higher levels

Instructions written at a parent level also apply to T31.22.

› From T31 Burns classified according to extent of body surface involved
Note
  • This category is to be used as the primary code only when the site of the burn is unspecified. It should be used as a supplementary code with categories T20-T25 when the site is specified.

Broader instructions also apply from Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to T31.22.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 948.22Burn [any degree] involving 20-29 percent of body surface with third degree burn, 20-29%approximate

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 T31.22

Is T31.22 billable?

Yes. T31.22 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can T31.22 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict T31.22 as a principal diagnosis.

Is T31.22 a CC or MCC?

T31.22 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does T31.22 group to?

T31.22 is used in the MS-DRG v44.0 logic for MS-DRG 927 (Extensive Burns or Full Thickness Burns with MV >96 Hours with Skin Graft) and MS-DRG 933 (Extensive Burns or Full Thickness Burns with MV >96 Hours without Skin Graft). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for T31.22?

The CMS General Equivalence Mappings map T31.22 to ICD-9-CM 948.22.