2026 ICD-10-CM Diagnosis Code T17.208SUnspecified foreign body in pharynx causing other injury, sequela

ICD-10-CM Codes›S00–T88›T15-T19›T17

ICD-10-CM T17.208S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T17.208S is a billable ICD-10-CM diagnosis code for unspecified foreign body in pharynx causing other injury, 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
T17.208S
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified foreign body in pharynx causing other injury, sequela
Short Description
Unsp foreign body in pharynx causing other injury, sequela
Parent Code
T17.208
Unspecified foreign body in pharynx causing other injury

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT15-T19Effects of foreign body entering through natural orifice
CategoryT17Foreign body in respiratory tract
This CodeT17.208SUnspecified foreign body in pharynx causing other injury, sequela

Present on Admission (POA)Billing

T17.208S 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.

  • Aspirated foreign body
  • Aspirated foreign body in pharynx
  • Aspiration foreign body
  • Aspiration of foreign body into pharynx
  • Foreign body in hypopharynx
  • Foreign body in larynx
  • Foreign body in nasopharynx
  • Foreign body in pharynx
  • Foreign body in pharynx and larynx
  • Foreign body in pyriform fossa
  • Foreign body in tonsil
  • Obstruction of pharynx caused by foreign body
  • Oropharyngeal foreign body

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Foreign body in respiratory tract (T17). 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

Patient EducationClinical

Foreign Bodies

If you've ever gotten a splinter or had sand in your eye, you've had experience with a foreign body. A foreign body is something that is stuck inside you but isn't supposed to be there. You may inhale or swallow a foreign body, or you may get one from an injury to almost any part of your body.

Read the full article at MedlinePlus

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

Convert T17.208S 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 T17.208SOverview

Is T17.208S (Unspecified foreign body in pharynx causing other injury) a billable code?

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

What does the 7th character S in T17.208S mean?

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

What MS-DRG does T17.208S group to?

When unspecified foreign body in pharynx causing other injury, 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 T17.208S 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 unspecified foreign body in pharynx causing other injury, sequela on inpatient claims.

What is the ICD-9 equivalent of T17.208S?

Under the General Equivalence Mappings, unspecified foreign body in pharynx causing other injury, 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.