G0423 HCPCS Level II code: Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per session
G0423 is the HCPCS code for “Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per session” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
G0423Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per session
Short description: Intens cardiac rehab no exer
HCPCS · United States
Medicare details
The indicators CMS publishes with G0423 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Physician fee schedule – Price established using national RVUs
- Type of service
- Medical care
- BETOS category
- Specialist - other
- Added
- Jan 1, 2010
Where G0423 sits
- 1G codesProcedures and professional services
- 2Active code G0423Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per session
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 G0423 mean?
G0423 is the HCPCS code for “Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per session” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G0423?
CMS lists G0423’s Medicare coverage as “Carrier judgment” and its pricing as “Physician fee schedule – Price established using national RVUs”. 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 G0423
All G codesG0417Surgical pathology, gross and microscopic examination, for prostate needle biopsy, any method, 21-40 specimensG0418Surgical pathology, gross and microscopic examination, for prostate needle biopsy, any method, 41-60 specimensG0419Surgical pathology, gross and microscopic examination, for prostate needle biopsy, any method, >60 specimensG0420Face-to-face educational services related to the care of chronic kidney disease; individual, per session, per one hourG0421Face-to-face educational services related to the care of chronic kidney disease; group, per session, per one hourG0422Intensive cardiac rehabilitation; with or without continuous ecg monitoring with exercise, per sessionG0424Pulmonary rehabilitation, including exercise (includes monitoring), one hour, per session, up to two sessions per dayG0425Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealthG0426Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealthG0427Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealthG0428Collagen meniscus implant procedure for filling meniscal defects (e.g., cmi, collagen scaffold, menaflex)G0429Dermal filler injection(s) for the treatment of facial lipodystrophy syndrome (lds) (e.g., as a result of highly active antiretroviral therapy)