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ICD-10-CM 2027

ICD-10 code for Acinetobacter baumannii carrier of

Z22.349

Carrier of Acinetobacter baumannii, unspecified

✓ Billable / specificNot a principal dx

From the official ICD-10-CM alphabetic index entry “Carrier (suspected) of › Acinetobacter baumannii”. Page updated September 29, 2026.

About coding Acinetobacter baumannii carrier of

The ICD-10-CM code for Acinetobacter baumannii carrier of is Z22.349 (Carrier of Acinetobacter baumannii, unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Z22.349.

Within Z22.34, choose Z22.349 (unspecified) only when documentation doesn't support a more specific option: carbapenem-resistant Acinetobacter baumannii (Z22.340) and carbapenem-sensitive Acinetobacter baumannii (Z22.341).

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.

More specific Acinetobacter baumannii carrier of codes (official index)

  • carbapenem-resistant Z22.340 — Carrier of carbapenem-resistant Acinetobacter baumannii
  • carbapenem-sensitive Z22.341 — Carrier of carbapenem-sensitive Acinetobacter baumannii

Common questions about Acinetobacter baumannii carrier of ICD-10 codes

What is the ICD-10 code for Acinetobacter baumannii carrier of?

Z22.349 — Carrier of Acinetobacter baumannii, unspecified. More specific codes apply when the documentation supports them: Z22.340, Z22.341.

What is the ICD-10 code for carbapenem-resistant acinetobacter baumannii carrier of?

Z22.340 — Carrier of carbapenem-resistant Acinetobacter baumannii.

What is the ICD-10 code for carbapenem-sensitive acinetobacter baumannii carrier of?

Z22.341 — Carrier of carbapenem-sensitive Acinetobacter baumannii.

Is Z22.349 billable?

Yes. Z22.349 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Z22.349 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 Z22.349 a CC or MCC?

No. Z22.349 is neither a CC nor an MCC under MS-DRG v44.0.