C2638 HCPCS Level II code: Brachytherapy source, stranded, iodine-125, per source
C2638 is the HCPCS code for “Brachytherapy source, stranded, iodine-125, per source” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
C2638Brachytherapy source, stranded, iodine-125, per source
Short description: Brachytx, stranded, i-125
HCPCS · United States
Medicare details
The indicators CMS publishes with C2638 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- Statute
- ASC
- Approved for ambulatory surgical centers
- Type of service
- Therapeutic radiology
- BETOS category
- Imaging/procedure - other
- Coverage statute
- 1833(t)(2)
- Added
- Jul 1, 2007
Where C2638 sits
- 1C codesOutpatient prospective payment system
- 2Active code C2638Brachytherapy source, stranded, iodine-125, per source
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code C2638 mean?
C2638 is the HCPCS code for “Brachytherapy source, stranded, iodine-125, per source” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover C2638?
CMS lists C2638’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Statute”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside C2638
All C codesC2630Catheter, electrophysiology, diagnostic/ablation, other than 3d or vector mapping, cool-tipC2631Repair device, urinary, incontinence, without sling graftC2634Brachytherapy source, non-stranded, high activity, iodine-125, greater than 1.01 mci (nist), per sourceC2635Brachytherapy source, non-stranded, high activity, palladium-103, greater than 2.2 mci (nist), per sourceC2636Brachytherapy linear source, non-stranded, palladium-103, per 1 mmC2637Brachytherapy source, non-stranded, ytterbium-169, per sourceC2639Brachytherapy source, non-stranded, iodine-125, per sourceC2640Brachytherapy source, stranded, palladium-103, per sourceC2641Brachytherapy source, non-stranded, palladium-103, per sourceC2642Brachytherapy source, stranded, cesium-131, per sourceC2643Brachytherapy source, non-stranded, cesium-131, per sourceC2644Brachytherapy source, cesium-131 chloride solution, per millicurie