Summary & Overview
HCPCS M1179: Adult Pneumococcal Vaccine Not Received
HCPCS Level II code M1179 documents that an adult patient (age 19 or older) did not receive any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and within the measurement period. This administrative marker is used in quality measurement and immunization reporting to identify patients lacking recommended pneumococcal vaccination. Nationally, accurate capture of this status affects preventive care metrics and population health reporting for adult immunizations.
The analysis covers major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code's clinical context, typical sites of service, common billing modifiers (listed separately), and implications for reporting and quality measurement. The publication provides benchmarks where available, notes on policy updates relevant to adult pneumococcal vaccination capture, and guidance on interpreting the code within immunization and preventive care workflows. Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and service line are noted as such.
Billing Code Overview
HCPCS Level II code M1179 indicates that a patient did not receive any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before or during the measurement period. This code documents absence of pneumococcal vaccination for adult patients during the specified time frame.
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Service type: Vaccination status assessment / Immunization preventive service
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Typical site of service: Primary care clinics, outpatient preventive care settings, community health centers, and other ambulatory care facilities
Data not available in the input for modifiers, associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male presents to a primary care clinic for an annual wellness visit. The patient’s medical record indicates he has not received any pneumococcal conjugate or polysaccharide vaccine on or after his 19th birthday and no documentation of pneumococcal immunization during the current measurement period. During the visit, the clinician reviews immunization history, discusses pneumococcal disease risk given the patient’s age and chronic obstructive pulmonary disease, and documents that no pneumococcal vaccine was administered. The clinical workflow includes verifying immunization registry and chart records, counseling reasons for vaccination or deferral, and recording the reason for nonadministration in the chart so the measure M1179 accurately reflects that the patient did not receive a pneumococcal vaccine during the measurement period. Typical documentation captures patient identifiers, immunization history query results, clinical rationale for nonvaccination, and any plan to vaccinate at a future encounter.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when documentation supports substantially greater work or complexity related to counseling or care coordination about immunizations beyond typical visit content. |