2026 ICD-10-CM Diagnosis Code T75.3XXSMotion sickness, sequela
T75.3XXS is a billable ICD-10-CM diagnosis code for motion sickness, 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Effect of other external causes, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T75.3XXS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Air sickness
- Car sickness
- Motion sickness
- Outer space sickness
- Sea sickness
- Train sickness
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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Motion Sickness
disorder caused by motion. it includes sea sickness, train sickness, roller coaster rides, rocking chair, hammock swing, car sickness, air sickness, or space motion sickness. symptoms include nausea, vomiting and/or dizziness.Space Motion Sickness
disorder characterized by nausea, vomiting, and dizziness, possibly in response to vestibular disorientation or fluid shifts associated with space flight. (from webster's new world dictionary)Car Sickness
a sensation of discomfort associated with ground travel; symptoms may include nausea, vomiting, dizziness or sweating.Sea Sickness
a sensation of discomfort associated with travel over water, which may include nausea, vomiting, dizziness, or sweating.Air Sickness
a sensation of discomfort associated with air travel that may include nausea, vomiting, dizziness, or sweating.
Patient EducationClinical
Motion Sickness
Motion sickness is a common problem in people traveling by car, train, airplanes, and especially boats. Anyone can get it, but it is more common in children, pregnant women, and people taking certain medicines. Motion sickness can start suddenly, with a queasy feeling and cold sweats.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T75.3XXS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T75.3XXSOverview
Is T75.3XXS (Motion sickness) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report motion sickness, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T75.3XXS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the motion sickness itself has resolved, not the original event.
What MS-DRG does T75.3XXS group to?
When motion sickness, 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 T75.3XXS 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 motion sickness, sequela on inpatient claims.
What is the ICD-9 equivalent of T75.3XXS?
Under the General Equivalence Mappings, motion sickness, sequela converts to ICD-9-CM 909.4 (late eff cert ext cause). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
