M1284 HCPCS: Reimbursement & Policy | OpenPayer

Summary & Overview

HCPCS M1284: Institutional SNP or Long-Term Care Residency, Age 66+

HCPCS Level II code M1284 designates beneficiaries aged 66 and older who are enrolled in institutional special needs plans (SNPs) or who have resided in long-term care settings with place-of-service codes 32, 33, 34, 54, or 56 for more than 90 consecutive days during the measurement period. The code is an identifier used in quality measurement and membership classification for older adults in institutional settings, supporting accurate attribution and eligibility assessment at the national level. Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical and administrative intent of M1284, the typical service setting, and the implications for measurement and reporting across large commercial and public payers. The publication also summarizes common modifiers and notes where data are not available in the input. The content outlines how M1284 is used for tracking long-term residency among older enrollees, which affects enrollment cohorts, care management workflows, and performance measurement. Data elements such as associated taxonomies, ICD-10 diagnoses, related codes, and service line are noted as not available in the input where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareM1284HCPCS Level IIlong-term carespecial needs planSNPelderly carequality measurementmembership attribution

Billing Code Overview

HCPCS Level II code M1284 identifies patients age 66 or older who are enrolled in institutional special needs plans (SNPs) or who have been residing in long-term care with place-of-service codes 32, 33, 34, 54, or 56 for more than 90 consecutive days during the measurement period. This billing indicator is used to flag long-term institutional residency among older adults for measurement and reporting purposes.

Service Type: Long-term institutional residency measurement / membership attribution

Typical Site of Service: Long-term care facilities and institutional settings (places of service corresponding to 32, 33, 34, 54, 56).

Clinical & Coding Specifications

Clinical Context

A typical scenario involves an adult aged 66 or older who has been enrolled in an institutional special needs plan (SNP) or who has resided in a long-term care facility (place-of-service codes 32, 33, 34, 54, or 56) for more than 90 consecutive days during the measurement period. A primary care clinician, geriatrician, or nursing facility medical director performs periodic assessments, chronic disease management, medication reconciliation, advance care planning, and preventive care services while the patient remains in the facility. Documentation includes dates of continuous stay, plan enrollment status, comprehensive medical history, medication lists, problem list updates, and face-to-face encounters or telehealth visits as permitted by payor rules. Typical workflow: facility admission and verification of enrollment in the institutional SNP; baseline comprehensive assessment (including cognitive and functional status); recurring follow-up visits every 30–90 days or as clinically indicated; coordination of care with nursing staff, social work, and specialists; billing using the institutional SNP billing code M1284 with applicable modifiers and supporting CPT codes for services delivered during the stay.

Coding Specifications

Modifier	Description	When to Use

HCPCS Level II M1163: Anaphylaxis Due to HPV Vaccine Before Age 13

HCPCS-M1299-INFLUENZA-IMMUNIZATION-ADMINISTERED-OR-PREVIOUSLY-RECEIVED

HCPCS M1299: Influenza Immunization Administered or Previously Received

HCPCS-M1478-PSYCHOACTIVE-SUBSTANCE-ABUSE-TREATMENT

HCPCS Level II M1478: Psychoactive Substance Abuse Services

HCPCS-M1385-DOCUMENTATION-PAM-FOLLOW-UP-NONCOMPLETION

HCPCS M1385: Documentation of Reasons for Missed Second PAM Survey

HCPCS-LEVEL-II-M1490-PATIENT-STATUS-NOT-DOCUMENTED

HCPCS Level II M1490: Patient Status Not Documented

HCPCS-M1386-MELANOMA-EXCISIONAL-SURGERY-COHORT-STAGING-0-II

HCPCS Level II M1386: Excisional Surgery Cohort for Melanoma Stages 0–II

HCPCS-M1241-PATIENT-DID-NOT-RESPOND-TO-FEELING-SEEN-AS-A-PERSON

HCPCS Level II M1241: Patient Did Not Respond to 'Seen as a Person' Question

HCPCS-M1282-TOBACCO-NON-USER-SCREENING

HCPCS M1282: Patient Screened for Tobacco Use, Identified as Non-User

HCPCS-M1287-BMI-BELOW-NORMAL-FOLLOW-UP-PLAN

HCPCS Level II M1287: BMI Below Normal with Documented Follow-Up Plan

HCPCS-M1148-PATIENT-SELF-DISCHARGED-ONGOING-CARE-NOT-POSSIBLE

HCPCS Level II M1148: Ongoing Care Not Possible Due to Patient Self-Discharge

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`22`	Increased procedural services	When services provided during the visit require substantially greater resources than typical and documentation supports increased complexity.
`23`	Unusual anesthesia	When a procedure requiring general anesthesia was performed in an unusual situation; rarely applicable but included for completeness.
`52`	Reduced services	When a service or procedure is partially reduced or eliminated at the physician’s discretion and documentation supports decreased service.
`53`	Discontinued procedure	When a procedure was started but discontinued due to extenuating circumstances or patient condition.
`54`	Surgical care only	When only the surgical portion of care is billed and postoperative care is furnished by another provider.
`55`	Postoperative management only	When only postoperative care is billed and another provider performed the initial procedure.
`56`	Preoperative management only	When only preoperative care is billed and another provider performed the subsequent procedure.
`62`	Two surgeons	When two surgeons work together as primary surgeons performing distinct parts of a procedure.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	When an advanced practice clinician serves as an assistant at surgery and billing rules permit.
`CQ`	Service furnished by a center without direct physician involvement (distinct program-specific)	When services are provided under specific program arrangements requiring this modifier.
`QK`	Medical direction of two, three, or four concurrent anesthesia procedures involving qualified individuals	When the reporting clinician medically directs multiple concurrent anesthesia cases.
`QX`	CRNA service with qualified anesthesiologist medically directing 1:1	When a certified registered nurse anesthetist provides anesthesia under the medical direction of an anesthesiologist.
`QY`	Medical direction of one certified registered nurse anesthetist by an anesthesiologist	When an anesthesiologist medically directs a CRNA for a single case.
`FX`	Modifiers indicating specific payer program or documentation (program-specific)	When required by specific payor program rules for reporting services in institutional SNP settings.

Taxonomy Code	Specialty	Notes
207Q00000X	Geriatric Medicine	Common specialty managing comprehensive care for long-term care residents and SNP enrollees.
207RC0000X	Family Medicine	Provides primary care and longitudinal management in institutional settings.
207RG0300X	Internal Medicine	Hospitalist or primary care internist managing chronic disease and transition care in facilities.
363L00000X	Nursing Facility Clinician (Nurse Practitioner)	Advanced practice clinicians providing on-site primary care in long-term care facilities.
2084P0800X	Physician Assistant	Supports on-site medical care, procedures, and care coordination in nursing facilities.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z60.0`	Problems related to living alone	Relevant for social context and discharge planning in long-term care residents.
`Z59.0`	Homelessness	May be relevant for social determinants influencing placement in institutional settings.
`Z74.3`	Need for continuous supervision	Relevant for patients requiring long-term institutional care and supervision.
`Z74.01`	Bed confinement status	Documents functional dependency and need for long-term facility placement.
`Z91.19`	Patient’s noncompliance with other medical treatment and regimen	Relevant when documenting adherence issues that affect care planning in an institutional SNP.
`Z13.89`	Encounter for screening for other disorder	Used for preventive screening activities conducted during facility stays.
`Z02.82`	Encounter for determination of eligibility for benefits	Used when documenting eligibility or verification for institutional special needs plan enrollment.
`Z79.899`	Other long-term (current) drug therapy	Documents chronic medications requiring monitoring during prolonged facility stays.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99304`	Initial nursing facility care, per day, for the evaluation and management of a patient, typically 30 minutes	Used for initial comprehensive assessment when a patient is newly admitted to a long-term care facility and enrolled in an institutional SNP.
`99307`	Subsequent nursing facility care, per day, for the evaluation and management of a patient, typically 15 minutes	Used for follow-up visits during the same stay for ongoing chronic disease management and medication reconciliation.
`99483`	Assessment of and care planning for a patient with cognitive impairment, requiring complex multidisciplinary care planning	Used when cognitive assessment and care planning are performed for patients with dementia residing in long-term care.
`96372`	Therapeutic, prophylactic, or diagnostic injection (specify drug)	Used when on-site injections (e.g., antibiotics, vitamin B12) are administered during facility visits.
`99406`	Smoking and tobacco use cessation counseling visit, intermediate, greater than 3 minutes up to 10 minutes	Used when counseling for tobacco cessation is offered as part of preventive care during facility visits.

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