CPT 91322 Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

CPT 91322: SARS–CoV–2 Vaccine, 50 mcg/0.5 mL Intramuscular

CPT code 91322 identifies a SARS–CoV–2 vaccine product administered intramuscularly at a dosage of 50 mcg/0.5 mL to reduce risk of COVID–19. This vaccine code matters nationally as COVID–19 vaccination remains a central public health activity with broad payer coverage and implications for outpatient care delivery, reporting, and vaccine inventory management.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and payer scope. The publication summarizes common modifier usage patterns and highlights areas where payers have historically issued policy guidance or coverage criteria for vaccine administration services. It also outlines benchmarks and policy updates relevant to billing and reimbursement for adult and eligible population vaccination programs.

The report is intended to help billing managers, compliance officers, and clinicians understand how CPT code 91322 is used in practice, what services it represents, and where to look for payer-specific policy details. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare91322CPTSARS-CoV-2 vaccinevaccine administrationintramuscular injectionimmunizationoutpatient servicesCOVID-19

Billing Code Overview

CPT code 91322 represents a SARS–CoV–2 vaccine product administered by intramuscular injection to reduce the patient’s risk of contracting COVID–19. The dosage specified for this product is 50 mcg/0.5 mL.

Service type: Vaccine administration (intramuscular)
Typical site of service: Ambulatory clinics, primary care offices, mass vaccination clinics, and other outpatient settings where intramuscular vaccinations are provided.

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult seeking COVID-19 vaccination booster dose during a routine ambulatory visit at a primary care clinic or pharmacy. The patient presents for vaccination to reduce risk of SARS–CoV–2 infection and has no acute illness contraindicating intramuscular injection. Documentation includes informed consent, vaccine manufacturer and lot number, dose 50 mcg/0.5 mL, route intramuscular (IM), administration site (e.g., left deltoid), and vaccination date and time. Pre-administration screening for allergies and recent acute illnesses is performed, and the patient is observed for the standard post-vaccination monitoring period for immediate adverse reactions. Billing uses the vaccine product code 91322 for the 50 mcg/0.5 mL SARS–CoV–2 vaccine; visit-level evaluation and management services, if provided and medically necessary, are reported separately using appropriate E/M codes with modifiers as needed.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (standard)	Used when no special circumstances apply and full payment is appropriate.
`22`

CPT 91299: Unlisted Gastrointestinal Diagnostic Procedure

CPT-91318-SARS-COV-2-VACCINE-TRIS-SUCROSE-3MCG

CPT 91318: SARS–CoV–2 Vaccine (tris–sucrose), 3 mcg/0.3 mL

CPT-91319-SARS-COV-2-VACCINE-TRIS-SUCROSE-10MCG-0-3ML-IM

CPT 91319: SARS–CoV–2 Vaccine (tris–sucrose), 10 mcg/0.3 mL IM

CPT-91200-LIVER-ELASTOGRAPHY-LESION-CHARACTERIZATION

CPT 91200: Liver Elastography for Lesion Characterization

CPT-91323-MRNA-COVID19-VACCINE-10MCG-0-2ML-IM-IMMUNIZATION

CPT 91323: mRNA COVID-19 Vaccine, 10 mcg/0.2 mL Intramuscular

CPT-91320-SARS-COV-2-VACCINE-30MCG-INTRAMUSCULAR

CPT 91320: SARS–CoV–2 Vaccine (30 mcg/0.3 mL) Intramuscular

CPT-91321-SARS-COV-2-VACCINE-25MCG-IM-INJECTION

CPT 91321: SARS–CoV–2 Vaccine, 25 mcg Intramuscular Injection

Taxonomy Code	Specialty	Notes
`207Q00000X`	Family Medicine	Primary care clinicians who commonly administer vaccines in outpatient settings.
`208D00000X`	General Internal Medicine	Adult medicine physicians providing routine immunizations and boosters.
`363A00000X`	Pharmacy	Pharmacists providing vaccine administration in community pharmacy settings where permitted.
`208000000X`	Emergency Medicine	Emergency clinicians who may administer vaccines during visits for other concerns.
`207L00000X`	Pediatric Medicine	Pediatricians for eligible adolescent or young adult recipients when applicable.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z23`	Encounter for immunization	Primary billing diagnosis for administration of routine vaccinations, including COVID-19 vaccine.
`U07.1`	COVID-19, virus identified	Relevant when vaccination is given to patients with a history of recent or prior SARS–CoV–2 infection; not typically the primary diagnosis for routine vaccination.
`Z71.89`	Other specified counseling	Used when counseling related to vaccine administration, risk discussion, or refusal counseling is documented.
`Z00.00`	Encounter for general adult medical examination without abnormal findings	May be used when vaccine is administered during a preventive visit.
`R68.89`	Other general symptoms and signs	Used when mild post-vaccination symptoms are documented and managed during the visit.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90460`	Immunization administration through 18 years of age via any route, with counseling by physician or other qualified health care professional; first or only component of each vaccine or toxoid administered	Used when administration includes counseling and documentation for patients up to 18; not directly for adult `91322` but relevant if younger recipients are vaccinated.
`90461`	Each additional vaccine/toxoid component administered (used with `90460`)	Used when multiple vaccine components are administered at the same visit; relevant if co-administration with other vaccines occurs.
`90471`	Immunization administration (intramuscular, single or first vaccine/toxoid)	Commonly used for coding the administration service for adult intramuscular vaccines when separate administration code required alongside vaccine product code.
`90472`	Each additional sequential injection (same date)	Used for additional injectable vaccines given in the same encounter.
`99212`	Office or other outpatient visit for the evaluation and management of an established patient, typically 10 minutes	Example E/M service that may be billed separately with modifier `25` if a significant, separate E/M is provided on the same day as vaccination.

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