A4638 – Replacement battery for patient-owned ear pulse generator, each

HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental

Active code Carrier judgment

HCPCS codeA4638
Long description
Replacement battery for patient-owned ear pulse generator, each
Short description
Repl batt pulse gen sys
Pricing indicator
32 DME – inexpensive & routinely purchased
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
D1E Other DME
Added
January 1, 2004
Last change
January 1, 2004 – No change

Frequently asked questions

What is HCPCS code A4638?

A4638 is a HCPCS Level II code for replacement battery for patient-owned ear pulse generator, each.

Does Medicare cover A4638?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby A codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.