ICD-10-CM 2027 diagnosis code
T75.3XXAMotion sickness, initial encounter
T75.3XXA is a valid, billable ICD-10-CM code for motion sickness, initial encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 T75.3XXA
T75.3XXA is the ICD-10-CM diagnosis code for motion sickness, initial encounter. It belongs to category T75 (other and unspecified effects of other external causes), block T66-T78 (other and unspecified effects of external causes) 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 149 (Dysequilibrium, relative weight 0.7527), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), 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 994.6 (motion sickness) and E903 (accident caused by travel and motion).
7th character
Ainitial encounter
Other encounter types for T75.3:
Notes that apply from higher levels
Instructions written at a parent level also apply to T75.3XXA.
› From T75.3 Motion sickness
- external cause code to identify vehicle or type of motion (Y92.81-)
Broader instructions also apply from T66-T78 Other and unspecified effects of external causes 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.
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat
ICD-9-CM equivalent
Converter →- 994.6Motion sicknessapproximate, combination
- E903Accident caused by travel and motionapproximate, combination
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T75.3XXA
Is T75.3XXA billable?
- Yes. T75.3XXA 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 T75.3XXA 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 T75.3XXA be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict T75.3XXA as a principal diagnosis.
Is T75.3XXA a CC or MCC?
- No. T75.3XXA is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does T75.3XXA group to?
- T75.3XXA is used in the MS-DRG v44.0 logic for MS-DRG 149 (Dysequilibrium). 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 T75.3XXA?
- The CMS General Equivalence Mappings map T75.3XXA to ICD-9-CM 994.6 and E903.