Summary & Overview
HCPCS A9279: Monitoring Feature or Device, Stand‑Alone or Integrated
HCPCS Level II code A9279 designates a catch-all monitoring feature or device — stand-alone or integrated — that includes all accessories, components, and electronics and is not otherwise classified under a specific HCPCS code. This code matters nationally as the use of diverse patient monitoring technologies expands across home health, outpatient, and hospital settings; A9279 provides a billing pathway when no specific code exists for a particular monitoring device or built-in feature. Key national payers referenced in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn how A9279 is used to bill for unclassified monitoring equipment, the typical service contexts where the code applies (durable medical equipment and remote monitoring in home and outpatient settings), and where to expect policy and billing attention as device functionality and remote care models evolve. The publication summarizes common modifiers and billing considerations, highlights payer coverage patterns, and outlines the operational implications for supplying and documenting monitoring devices when a specific HCPCS code is unavailable. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
HCPCS Level II code A9279 describes a monitoring feature or device, either stand-alone or integrated, of any type. The code covers the device and includes all accessories, components, and electronics, and is used for items not otherwise classified under a more specific HCPCS Level II code.
Service type: Durable medical equipment / remote monitoring device — devices intended to monitor physiologic or environmental parameters, either as standalone equipment or as integrated components of larger systems.
Typical site of service: Home, outpatient clinic, hospital, or other care settings where monitoring equipment is used or supplied, including use in remote patient monitoring contexts when the device is provided to or used by the patient outside of an inpatient stay.
Data not available in the input for taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a chronic cardiopulmonary or neurologic condition requiring continuous physiologic surveillance, such as congestive heart failure with frequent decompensations, chronic obstructive pulmonary disease with hypoxemia, or advanced neuromuscular disease with risk of respiratory compromise. The clinician orders a stand‑alone or integrated monitoring device (A9279) to provide continuous or intermittent remote physiologic data (for example, oxygen saturation, heart rate, respiratory rate, or multi‑parameter telemetry) when in‑clinic observation is insufficient.
A common workflow: the ordering clinician documents the medical necessity and specific monitoring goals in the chart, the device vendor supplies and configures the monitor (including accessories and electronics), nursing or respiratory therapy educates the patient on device use, and device data are transmitted to a monitoring center or the ordering provider. Billing is submitted under HCPCS Level II code A9279 for the device (single global code that includes accessories and electronics). Professional interpretation or review of monitor data may be billed separately using relevant CPT codes if applicable, with appropriate modifiers applied when the service is altered, professional only, or provided concurrently with other services.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 |