2026 ICD-10-CM Diagnosis Code T15.00XSForeign body in cornea, unspecified eye, sequela

ICD-10-CM Codes›S00–T88›T15-T19›T15

ICD-10-CM T15.00XS
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T15.00XS is a billable ICD-10-CM diagnosis code for foreign body in cornea, unspecified eye, 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 913 through 914. The code is exempt from POA reporting. Coders also document this condition as corneal foreign body. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
T15.00XS
Billable Status
Yes — Valid for Submission
Code Describes
Foreign body in cornea, unspecified eye, sequela
Short Description
Foreign body in cornea, unspecified eye, sequela
Same as the full description in the CMS dataset.
Parent Code
T15.00
Foreign body in cornea, unspecified eye

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT15-T19Effects of foreign body entering through natural orifice
CategoryT15Foreign body on external eye
This CodeT15.00XSForeign body in cornea, unspecified eye, sequela

Present on Admission (POA)Billing

T15.00XS 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.

  • Corneal foreign body
  • Corneal rust ring
  • Splinter in cornea

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Foreign body on external eye (T15). 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.

CCSR INJ073
Injury, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Corneal Foreign Body

    external material in or on the cornea.

Patient EducationClinical

Corneal Disorders

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert T15.00XS to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
908.5 Late eff FB in orifice
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About T15.00XSOverview

Is T15.00XS (Foreign body in cornea, unspecified eye) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report foreign body in cornea, unspecified eye, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in T15.00XS mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the foreign body in cornea itself has resolved, not the original event.

What MS-DRG does T15.00XS group to?

When foreign body in cornea, unspecified eye, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 913, 914, with relative weights from 0.8855 to 1.6346 depending on complications. Higher weights mean higher Medicare reimbursement.

Is T15.00XS 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 foreign body in cornea, unspecified eye, sequela on inpatient claims.

What is the ICD-9 equivalent of T15.00XS?

Under the General Equivalence Mappings, foreign body in cornea, unspecified eye, sequela converts to ICD-9-CM 908.5 (late eff FB in orifice). 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.