2026 ICD-10-CM Diagnosis Code Z18.89Other specified retained foreign body fragments

ICD-10-CM Codes›Z00–Z99›Z18›Z18

ICD-10-CM Z18.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z18.89 is a billable ICD-10-CM diagnosis code for other specified retained foreign body fragments. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified status.

Code Identity

ICD-10-CM Code
Z18.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified retained foreign body fragments
Short Description
Other specified retained foreign body fragments
Same as the full description in the CMS dataset.
Parent Code
Z18.8
Other specified retained foreign body

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ18Retained foreign body fragments
CategoryZ18Retained foreign body fragments
This CodeZ18.89Other specified retained foreign body fragments

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z18.89.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z18.89 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.

  • Beryllium granuloma of skin
  • Disorder associated with retained intrauterine contraceptive device
  • Disorder of skin caused by tattoo ink
  • Eyelash stuck in meibomian gland orifice
  • Foreign body dermatosis
  • Foreign body in anus
  • Foreign body in ureter
  • Foreign body in vagina
  • Infection associated with intrauterine contraceptive device
  • Infection associated with retained intrauterine contraceptive device
  • Lens material in anterior chamber
  • Nodule of skin of abdomen
  • Nodule of umbilical structure
  • Oral piercing
  • Piercing in left third of lower lip
  • Piercing in left third of upper lip
  • Piercing in middle third of lower lip
  • Piercing in middle third of upper lip
  • Piercing in right third of lower lip
  • Piercing in right third of upper lip
  • Reaction to thorn and/or spine in skin
  • Retained lens matter in vitreous
  • Retained nuclear material in vitreous
  • Retained ureteric catheter
  • Retained ureteric stent
  • Sarcoidal granuloma of skin
  • Silica granuloma of skin
  • Soft lens matter in anterior chamber
  • Splinter in anus
  • Splinter in anus with infection
  • Splinter in eyelid
  • Splinter in face
  • Splinter in perineum with infection
  • Splinter in skin
  • Splinter in skin with infection
  • Splinter in trunk
  • Splinter of eyelids and periocular area
  • Talc granuloma of skin
  • Talc granuloma of umbilicus
  • Tampon retained in vagina
  • Tattoo granuloma
  • Umbilical granuloma

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Retained
      • foreign body fragments (type of)
        • specified NEC
    • Retained
      • fragments (type of )
        • specified NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC025
Other specified status
Default principal diagnosis: inpatient No · outpatient Yes

Clinical InformationClinical

  • Umbilical Granuloma

    excessive granulation tissue at the base of the umbilicus after separation.

  • Foreign Body in Penis

    extraneous material located within the penis.

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 Z18.89 to ICD-9-CMHistory

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

ICD-9-CM
V90.89 Retain FB NEC
Exact Match The mapping is direct, with no qualifiers.

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 Z18.89Overview

Is Z18.89 (Other specified retained foreign body) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified retained foreign body fragments on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z18.89 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because other specified retained foreign body fragments describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z18.89 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 other specified retained foreign body fragments on inpatient claims.

What is the ICD-9 equivalent of Z18.89?

Under the General Equivalence Mappings, other specified retained foreign body fragments converts to ICD-9-CM V90.89 (retain FB NEC). The mapping is a direct match.