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ICD-10-CM 2027 diagnosis code

T07.XXXAUnspecified multiple injuries, initial encounter

✓ Billable / specificRequires 7th character

T07.XXXA is a valid, billable ICD-10-CM code for unspecified multiple injuries, initial encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T07.XXXA

T07.XXXA is the ICD-10-CM diagnosis code for unspecified multiple injuries, initial encounter. It belongs to category T07 (unspecified multiple injuries), block T07 (injuries involving multiple 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.

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.

In MS-DRG v44.0, it is part of the grouping logic for DRG 913 (Traumatic Injury with MCC, relative weight 1.5455), DRG 914 (Traumatic Injury without MCC, relative weight 0.9285), DRG 963 (Other Multiple Significant Trauma with MCC, relative weight 2.6363), DRG 964 (Other Multiple Significant Trauma with CC, relative weight 1.4972) and DRG 965 (Other Multiple Significant Trauma without CC/MCC, relative weight 1.0059), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs) and MDC 24 (Multiple Significant Trauma), 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 was added in FY2018, effective October 1, 2017.

Before ICD-10, this condition was coded in ICD-9-CM as 959.8 (other specified sites, including multiple injury).

7th character

Ainitial encounter

Other encounter types for T07:

Notes that apply from higher levels

Instructions written at a parent level also apply to T07.XXXA.

› From T07 Unspecified multiple injuries
Excludes1
› From T07 Injuries involving multiple body regions
Excludes1
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
  • sunburn (L55.-)

Broader instructions also apply from 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 →
  • 959.8Other specified sites, including multiple injuryapproximate

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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about T07.XXXA

Is T07.XXXA billable?

Yes. T07.XXXA 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 T07.XXXA 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 T07.XXXA be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict T07.XXXA as a principal diagnosis.

Is T07.XXXA a CC or MCC?

No. T07.XXXA is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does T07.XXXA group to?

T07.XXXA is used in the MS-DRG v44.0 logic for MS-DRG 913 (Traumatic Injury with MCC), MS-DRG 914 (Traumatic Injury without MCC), MS-DRG 963 (Other Multiple Significant Trauma with MCC), MS-DRG 964 (Other Multiple Significant Trauma with CC) and MS-DRG 965 (Other Multiple Significant Trauma without CC/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 T07.XXXA?

The CMS General Equivalence Mappings map T07.XXXA to ICD-9-CM 959.8.