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ICD-10-CM 2027 diagnosis code

T20.319SBurn of third degree of unspecified ear [any part, except ear drum], sequela

✓ Billable / specificPOA exemptRequires 7th character

T20.319S is a valid, billable ICD-10-CM code for burn of third degree of unspecified ear [any part, except ear drum], sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Burn of third degree of unspecified ear, 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 T20.319S

T20.319S is the ICD-10-CM diagnosis code for burn of third degree of unspecified ear [any part, except ear drum], sequela. It belongs to category T20 (burn and corrosion of head, face, and neck), block T20-T25 (burns and corrosions of external body surface, specified by site) 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.

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.

In MS-DRG v44.0, it is part of the grouping logic for DRG 604 (Trauma to the Skin, Subcutaneous Tissue and Breast with MCC, relative weight 1.453) and DRG 605 (Trauma to the Skin, Subcutaneous Tissue and Breast without MCC, relative weight 0.9079), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), 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 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 906.5 (late effect of burn of eye, face, head, and neck).

7th character

Ssequela

CC/MCC status for this injury by encounter: CC for A; Neither CC nor MCC for D, S.

Other encounter types for T20.319:

Notes that apply from higher levels

Instructions written at a parent level also apply to T20.319S.

› From T20.31 Burn of third degree of ear [any part, except ear drum]
Excludes2
› From T20.3 Burn of third degree of head, face, and neck
Use additional code
  • external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
› From T20 Burn and corrosion of head, face, and neck
Excludes2
  • burn and corrosion of ear drum (T28.41, T28.91)
  • burn and corrosion of eye and adnexa (T26.-)
  • burn and corrosion of mouth and pharynx (T28.0)

Broader instructions also apply from T20-T25 Burns and corrosions of external body surface, specified by site and Chapter 19: Injury, poisoning and certain other consequences of external causes.

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 →
  • 906.5Late effect of burn of eye, face, head, and neckapproximate

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 T20.319S

Is T20.319S billable?

Yes. T20.319S 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 T20.319S 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 T20.319S be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict T20.319S as a principal diagnosis.

Is T20.319S a CC or MCC?

No. T20.319S is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does T20.319S group to?

T20.319S is used in the MS-DRG v44.0 logic for MS-DRG 604 (Trauma to the Skin, Subcutaneous Tissue and Breast with MCC) and MS-DRG 605 (Trauma to the Skin, Subcutaneous Tissue and Breast without MCC). 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 T20.319S?

The CMS General Equivalence Mappings map T20.319S to ICD-9-CM 906.5.