2026 ICD-10-CM Diagnosis Code T75.838SEffects of other war theater, sequela

ICD-10-CM Codes›S00–T88›T66-T78›T75

ICD-10-CM T75.838S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T75.838S is a billable ICD-10-CM diagnosis code for effects of other war theater, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting.

Code Identity

ICD-10-CM Code
T75.838S
Billable Status
Yes — Valid for Submission
Code Describes
Effects of other war theater, sequela
Short Description
Effects of other war theater, sequela
Same as the full description in the CMS dataset.
Parent Code
T75.838
Effects of other war theater

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT66-T78Other and unspecified effects of external causes
CategoryT75Other and unspecified effects of other external causes
This CodeT75.838SEffects of other war theater, sequela

Present on Admission (POA)Billing

T75.838S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Other and unspecified effects of other external causes (T75). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Code History & ChangesHistory

New Code T75.838S was added to the ICD-10-CM code set for FY 2026, effective October 1, 2025.

Replacement T75.838S replaces the following previously assigned code(s):

  • T75.89XS - Other specified effects of external causes, sequela
FY 2026AddedAdded to the ICD-10-CM code setEffective October 1, 2025.
FY 2026CurrentRevised in the current code setEffective October 1, 2025 through September 30, 2026.

Questions About T75.838SOverview

Is T75.838S (Effects of other war theater) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report effects of other war theater, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in T75.838S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the effects of other war theater itself has resolved, not the original event.

What MS-DRG does T75.838S group to?

When effects of other war theater, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.

Is T75.838S exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for effects of other war theater, sequela on inpatient claims.