A4638 Repl batt pulse gen sys
Also known as: battery replacement, pulse gen battery, pacemaker battery
A replacement battery for a pulse generator system (implantable device such as pacemaker, implantable cardioverter-defibrillator, or neurostimulator). Essential component for continued device functionality.
In Plain Language
replacement power source for heart device; battery for implanted stimulator
Clinical Context
Used when implanted device batteries deplete. Battery longevity typically 5-10 years depending on device type and settings. Generator replacement is outpatient surgical procedure.
RVU Information
CPT A4638 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
HCPCS A-codes cover medical supplies, equipment, and transport services. Documentation must establish medical necessity and include a physician order. For durable medical equipment (DME), a Certificate of Medical Necessity (CMN) or detailed written order may be required.
Specialties
Frequently Asked Questions
What is CPT code A4638?
CPT A4638 (Repl batt pulse gen sys) is a A Codes code. A replacement battery for a pulse generator system (implantable device such as pacemaker, implantable cardioverter-defibrillator, or neurostimulator). Essential component for continued device functionality.
Does Medicare cover A4638?
Medicare coverage for A4638 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used when implanted device batteries deplete. Battery longevity typically 5-10 years depending on device type and settings. Generator replacement is outpatient surgical procedure. A physician order is typically required.
When is CPT A4638 used?
Used when implanted device batteries deplete. Battery longevity typically 5-10 years depending on device type and settings. Generator replacement is outpatient surgical procedure.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.