Billable / Specific Code
ICD-10-CM Z22.321 is the diagnosis code for Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus. This code falls under the section "Persons with potential health hazards related to communicable diseases" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where Z22.321 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Z22.321 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Z22.321 is the ICD-10-CM diagnosis code for "Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Z22.321 is Z22.32 ("Carrier of bacterial disease due to staphylococci"). Z22.321 provides a more specific classification within this category.
Z22.321 is located in Section Z20-Z29 — "Persons with potential health hazards related to communicable diseases" within Chapter 21 of the ICD-10-CM Tabular List.
Use Z22.321 when the patients documented diagnosis matches "Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus is Z22.321.
Yes, Z22.321 can be used as a primary diagnosis code since it is billable and specific.
Z22.321 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z22.321 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.