MCMedicalCodingSoftware
Z03.823

Z03.823: Encounter for observation for suspected inserted (injected) foreign body ruled out

Billable / specific codeICD-10-CMPOA exempt

Z03.823 is a billable, specific ICD-10-CM code for encounter for observation for suspected inserted (injected) foreign body ruled out. It is valid for submission on a claim.

Check Z03.823 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Encounter for observation for suspected inserted (injected) foreign body in eye ruled out
  • Encounter for observation for suspected inserted (injected) foreign body in orifice ruled out
  • Encounter for observation for suspected inserted (injected) foreign body in skin ruled out

Excludes1 inherited from the categories above Z03.823

A category’s note binds every code beneath it.

Written on Z03.82: Encounter for observation for suspected foreign body ruled out

  • retained foreign body (Z18.-)
  • retained foreign body in eyelid (H02.81)
  • residual foreign body in soft tissue (M79.5)

Written on Z03: Encounter for medical observation for suspected diseases and conditions ruled out

  • contact with and (suspected) exposures hazardous to health (Z77.-)
  • encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05.-)
  • person with feared complaint in whom no diagnosis is made (Z71.1)
  • signs or symptoms under study- code to signs or symptoms

Excludes2 inherited from the categories above Z03.823

Not part of this code, but both may be coded when both are present.

Written on Z03.82: Encounter for observation for suspected foreign body ruled out

  • confirmed foreign body ingestion or aspiration including:
  • foreign body in alimentary tract (T18)
  • foreign body in ear (T16)
  • foreign body on external eye (T15)
  • foreign body in respiratory tract (T17)

Other codes that can never be billed with Z03.823

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Z01Encounter for other special examination without complaint, suspected or reported diagnosis
  • Z71.1Person with feared health complaint in whom no diagnosis is made

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z03.823 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax

Alphabetic index entries that lead here

  • Observation›suspected, ruled out›foreign body›inserted(injected), in (eye) (orifice) (skin)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z03.82

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.