2027 ICD-10-CM Diagnosis Code T75Other and unspecified effects of other external causes

ICD-10-CM Codes›S00–T88›T66-T78›T75

ICD-10-CM T75
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

T75 is a non-billable ICD-10-CM category code for other and unspecified effects of other external causes, so it cannot be submitted on claims. Use a more specific code from this category instead, such as T75.00XA, T75.00XD, T75.00XS, and T75.01XA.

Code Identity

ICD-10-CM Code
T75
Billable Status
No — Non-Billable Category
Code Describes
Other and unspecified effects of other external causes
Short Description
Other and unspecified effects of other external causes
Same as the full description in the CMS dataset.
Chapter
T66-T78
Other and unspecified effects of external causes

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 CodeT75Other and unspecified effects of other external causes

Specific Coding for Other and unspecified effects of other external causesOverview

Non-specific codes like T75 require more characters. Use one of these billable codes instead:

  • T75.0 for Effects of lightning

  • T75.00 for Unspecified effects of lightning

  • T75.01 for Shock due to being struck by lightning

  • T75.09 for Other effects of lightning

  • T75.1 for Unspecified effects of drowning and nonfatal submersion

  • T75.2 for Effects of vibration

  • T75.20 for Unspecified effects of vibration

  • T75.21 for Pneumatic hammer syndrome

  • T75.22 for Traumatic vasospastic syndrome

  • T75.23 for Vertigo from infrasound

  • T75.29 for Other effects of vibration

  • T75.3 for Motion sickness

  • T75.4 for Electrocution

  • T75.8 for Other specified effects of external causes

  • T75.81 for Effects of abnormal gravitation [G] forces

  • T75.82 for Effects of weightlessness

  • T75.83 for Effects of war theater

  • T75.89 for Other specified effects of external causes

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 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to T75: its own notes plus those printed at block T66-T78 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • adverse effects NEC (T78.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On T75 itself
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From Block T66-T78 Other and unspecified effects of external causes applies to 456 codes
  • if applicable, place of occurrence, such as:
  • highway rest stop (Y92.523)
  • school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
  • service areas as the place of occurrence of the external cause (Y92.52-)
  • single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
  • transport vehicle as the place of occurrence of the external cause (Y92.81-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category T75
Values for category T75 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About T75Overview

What is the ICD-10 code for other and unspecified effects of other external causes?

T75 is the ICD-10-CM category for other and unspecified effects of other external causes, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is T75 (Other and unspecified effects of other external causes) a billable code?

No. This is a category header that groups the codes for other and unspecified effects of other external causes, and headers cannot be submitted on claims. Claims for other and unspecified effects of other external causes need a more specific code from this category, such as T75.00XA, T75.00XD, and T75.00XS.

Can T75 be reported with a code from T78?

Not as a rule. The Excludes1 note on T75 lists "adverse effects NEC (T78.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).