ICD10BillableValid for clinical use

ICD-10 Code Z22.330: Carrier of Group B streptococcus

Z22.330 is a billable ICD-10 diagnosis code used to classify Carrier of Group B streptococcus in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

When is it used?

  • May be used when a clinician documents carrier of group b streptococcus in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
21Factors influencing health status and contact with health services (Z00-Z99)
block
Z20-Z29Persons with potential health hazards related to communicable diseases
category
Z22Carrier of infectious disease
category
Z22.3Carrier of other specified bacterial diseases
category
Z22.33Carrier of bacterial disease due to streptococci
currentZ22.33

Official coding notes

Excludes1 (do not code together)
  • Carrier of streptococcus group B (GBS) complicating pregnancy, childbirth and the puerperium (O99.82-)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General Physician

Coding guidelines

Common synonyms

Carrier of Group B streptococcus

Frequently asked questions

Code details

CodeZ22.330
SystemICD10
Display nameCarrier of Group B streptococcus
ChapterFactors influencing health status and contact with health services (Z00-Z99)
BlockPersons with potential health hazards related to communicable diseases

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Carrier(suspected)ofCarrier(suspected)of

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Z22.330 for Carrier of Group B streptococcus | HealthAssure