Summary & Overview
CPT 95991: Implantable Pump Refill, Maintenance, and Electronic Analysis
CPT code 95991 identifies the clinical service of refilling and maintaining an implanted drug pump that delivers medication directly to the spine or brain, including electronic analysis to ensure proper function. This service is clinically important for ongoing management of conditions treated with intrathecal or intracranial drug delivery systems, such as chronic pain or certain central nervous system infections. Nationally, appropriate coding for pump refills and device interrogation affects continuity of care, device safety monitoring, and accurate provider billing.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes payer coverage considerations and common modifiers used in claims, and places the service in clinical context for procedural and outpatient settings.
Readers will learn what CPT code 95991 represents, typical sites of service, and how the code is used in practice for maintenance and electronic analysis of implanted pumps. The report provides benchmark and policy context where available, highlights clinical relevance for long-term implanted pump management, and notes where input data is not available. Data not available in the input: Associated taxonomies, specific ICD-10 diagnoses, related codes, service line details beyond the provided description.
Billing Code Overview
CPT code 95991 describes a service in which a physician or other qualified health care professional refills and performs maintenance on an implanted drug pump that delivers medication directly to the spine or brain. The service may include electronic analysis of the pump to verify proper functioning and to adjust delivery settings as needed.
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Service type: Implantable pump refill and maintenance, including device interrogation/electronic analysis
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Typical site of service: Ambulatory surgical center, hospital outpatient department, physician office, or other outpatient procedural setting where implanted pump management and device interrogation are performed
Clinical & Coding Specifications
Clinical Context
A 54-year-old patient with chronic refractory spasticity and intractable pain managed with an implanted intrathecal drug delivery pump presents for routine refill and maintenance. The physician reviews the pump’s medication reservoir, performs percutaneous access to the pump refill port, withdraws residual drug as needed, and instills the ordered refill volume under sterile technique. The clinician inspects the pump pocket for signs of infection or erosion, interrogates the pump controller to check programmed basal rates and bolus settings, documents the electronic analysis, and reprograms parameters if clinically indicated. Vital signs and neurologic exam are performed before and after the procedure. The encounter occurs in an outpatient specialty clinic or ambulatory surgery center with appropriate emergency support; documentation includes informed consent, medication lot numbers, volumes, pump serial number, device interrogation report, and post-procedure instructions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the physician’s professional work separate from technical device supply billed by facility or supplier. |
51 | Multiple procedures |