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ICD-10-CM 2027 diagnosis code

Z03.822Encounter for observation for suspected aspirated (inhaled) foreign body ruled out

✓ Billable / specificPOA exemptNot a principal dx

Z03.822 is a valid, billable ICD-10-CM code for encounter for observation for suspected aspirated (inhaled) foreign body ruled out. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Enctr for obs for suspected aspirated (inhaled) fb ruled out

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Z03.822

Z03.822 is the ICD-10-CM diagnosis code for encounter for observation for suspected aspirated (inhaled) foreign body ruled out. It belongs to category Z03 (encounter for medical observation for suspected diseases and conditions ruled out), block Z00-Z13 (persons encountering health services for examinations) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Z03.82 (encounter for observation for suspected foreign body ruled out), Z03.822 is specifically for encounter for observation for suspected aspirated (inhaled) foreign body ruled out. Related codes cover ingested foreign body ruled out (Z03.821) and inserted (injected) foreign body ruled out (Z03.823).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It was added in FY2021, effective October 1, 2020.

Notes that apply from higher levels

Instructions written at a parent level also apply to Z03.822.

› From Z03.82 Encounter for observation for suspected foreign body ruled out
Excludes1
  • retained foreign body (Z18.-)
  • retained foreign body in eyelid (H02.81)
  • residual foreign body in soft tissue (M79.5)
Excludes2
  • 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)
› From Z03 Encounter for medical observation for suspected diseases and conditions ruled out
Excludes1
  • 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

Broader instructions also apply from Z00-Z13 Persons encountering health services for examinations and Chapter 21: Factors influencing health status and contact with health services.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to Z03.822.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2021 (effective 10/1/2020): Added
  • No changes since FY2021.

Common questions about Z03.822

Is Z03.822 billable?

Yes. Z03.822 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Z03.822 be used as a principal diagnosis?

No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

Is Z03.822 a CC or MCC?

No. Z03.822 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Z03.822 group to?

Z03.822 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.