M1177 Pneumococcal Vaccine HCPCS Reimbursement | OpenPayer

Summary & Overview

HCPCS M1177: Adult Pneumococcal Vaccination Status

HCPCS Level II code M1177 documents that an adult (age 19 or older) received any pneumococcal conjugate or polysaccharide vaccine during the measurement period. This preventive-care vaccination code captures a common public health intervention with implications for population immunization tracking and quality measurement. It is used across ambulatory settings where adult immunizations are provided and is relevant for payers monitoring vaccination rates and adherence to immunization guidelines.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical intent, typical service setting, and how it functions within quality measurement frameworks. The publication outlines expected use cases, reporting implications for commercial and government payers, and the contexts in which the code is billed.

This summary provides benchmarks and reporting considerations, recent policy updates affecting adult immunization documentation, and the clinical context for pneumococcal vaccination in adults. It is intended to help coding managers, compliance teams, and payers understand the role of M1177 in immunization reporting and administrative workflows.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareM1177HCPCS Level IIpneumococcal vaccineadult immunizationvaccination administrationpreventive careambulatory carequality measurement

Billing Code Overview

HCPCS Level II code M1177 indicates that a patient received any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period. This code documents vaccination status for adults age 19 and older and is used to record administration events that meet the measurement criteria for pneumococcal immunization.

Service type: Vaccination administration
Typical site of service: Outpatient clinics, primary care offices, community vaccination sites, pharmacies, and other ambulatory care settings where adult immunizations are delivered.

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Clinical & Coding Specifications

Clinical Context

A 62-year-old patient presents to a primary care clinic for routine preventive care during the annual wellness visit. The clinician reviews the patient’s immunization history and determines that the patient has not received a pneumococcal vaccine since turning 19. Based on age and comorbidity assessment, the clinician administers a pneumococcal vaccine (conjugate or polysaccharide) during the visit. Documentation includes vaccine product name, lot number, expiration date, administration site, route (typically intramuscular), patient consent, and any counseling provided about expected side effects. The clinical workflow includes verification of vaccine eligibility, checking the state immunization registry, obtaining informed consent, administering the vaccine, monitoring the patient for 15 minutes for adverse reactions, and recording the immunization in the medical record and vaccination registry. Typical billing uses the HCPCS Level II code M1177 for reporting that the patient received any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period. Typical site of service is an outpatient clinic, primary care office, or community health center. Typical patient scenario: adult vaccine administration during a scheduled preventive visit or opportunistic immunization during an acute or chronic care visit.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services

HCPCS M1253: Ambulatory Palliative Care Patient Disavowal

HCPCS-M1171-TD-TDAP-VACCINE-HISTORY-9-YEAR-PERIOD

HCPCS M1171: Td or Tdap Vaccination Within Prior Nine Years

HCPCS-M1172-TD-TDAP-VACCINE-CONTRAINDICATION-DOCUMENTATION

HCPCS M1172: Documentation of Td/Tdap Vaccine Contraindication

HCPCS-M1240-PATIENT-NO-RESPONSE-PROVIDER-BEST-INTERESTS-QUESTION

HCPCS M1240: Patient Nonresponse to Provider Best-Interests Question

HCPCS-M1373-GLYCEMIC-STATUS-HBA1C-8-TO-9-PERCENT

HCPCS Level II M1373: Glycemic Status Assessment, HbA1c/GMI 8.0–9.0%

HCPCS-M1312-PATIENT-NOT-SCREENED-TOBACCO-USE

HCPCS Level II M1312: Patient Not Screened for Tobacco Use

HCPCS-M1286-BMI-OUTSIDE-NORMAL-PARAMETERS-FOLLOW-UP-NOT-COMPLETED-MEDICAL-REASON

HCPCS Level II M1286: BMI Outside Normal Parameters, Follow-Up Not Completed

HCPCS-M1155-ANAPHYLAXIS-PNEUMOCOCCAL-VACCINE

HCPCS M1155: Anaphylaxis Due to Pneumococcal Vaccine, Documented

HCPCS-M1181-GRADE-2-OR-ABOVE-DIARRHEA-COLITIS

HCPCS M1181: Grade 2+ Diarrhea and/or Colitis

HCPCS-M1277-COLORECTAL-CANCER-SCREENING-RESULTS-DOCUMENTED-REVIEWED

HCPCS Level II M1277: Colorectal Cancer Screening Results Documented and Reviewed

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Taxonomy Code	Specialty	Notes
`207Q00000X`	Family Medicine	Primary clinicians who commonly administer adult pneumococcal vaccines in outpatient settings.
`207R00000X`	Internal Medicine	Adult primary care physicians who provide immunizations to older adults and patients with chronic disease.
`363L00000X`	Public Health	Providers in community health and public health clinics administering vaccines at scale.
`193200000X`	Nurse Practitioner	Advanced practice clinicians who frequently provide immunizations in clinics and community settings.
`364S00000X`	Registered Nurse	Nurses who routinely administer vaccines and document immunizations in ambulatory settings.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z23`	Encounter for immunization	Indicates the visit is for vaccine administration and is the primary reason for billing the pneumococcal vaccine.
`J44.9`	Chronic obstructive pulmonary disease, unspecified	Chronic lung disease that increases risk for pneumococcal disease and supports vaccine indication.
`I10`	Essential (primary) hypertension	Common chronic condition in adults; often present in patients receiving routine adult immunizations.
`E11.9`	Type 2 diabetes mellitus without complications	Diabetes is an indication for pneumococcal vaccination due to higher infection risk.
`B20`	Human immunodeficiency virus [HIV] disease	Immunocompromised status increases pneumococcal disease risk and supports vaccination.
`D63.8`	Anemia in chronic diseases classified elsewhere	Chronic disease states that may influence immunization decisions and documentation.
`N18.3`	Chronic kidney disease, stage 3 (moderate)	CKD is an indication for pneumococcal vaccination in adult patients.
`Z79.899`	Other long term (current) drug therapy	Used to document ongoing therapies (e.g., immunosuppressants) that affect vaccine planning and timing.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90460`	Immunization administration through 18 years of age via any route of administration, with counseling by physician or other qualified health care professional; first vaccine/toxoid component	Not directly for adult administration; included for contexts where pediatric catch-up or mixed-age clinic workflows occur.
`90461`	Immunization administration through 18 years of age, each additional vaccine/toxoid component	See `90460` note; not applicable to adult billing but relevant in mixed-age practice settings.
`90471`	Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); first vaccine (single or combination vaccine/toxoid)	Commonly used for reporting the administration of a single adult pneumococcal vaccine when a CPT administration code is required alongside the vaccine product code.
`90472`	Immunization administration; each additional vaccine (single or combination vaccine/toxoid)	Use when multiple vaccines are given during the same encounter in addition to the pneumococcal vaccine.
`90670`	Pneumococcal conjugate vaccine, 13 valent, for intramuscular use	Specific vaccine product code that may be billed or reported when the PCV13 product is administered in adult patients, when applicable.
`90732`	Pneumococcal polysaccharide vaccine; 23 valent, for intramuscular or subcutaneous use	Specific vaccine product code for PPSV23 that may be documented or billed when this polysaccharide vaccine is administered to adult patients.

Note: When using M1177, facility or payer rules may determine whether HCPCS vaccine product codes (90670, 90732) or CPT administration codes (90471, 90472) are also required for complete billing and documentation.

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