Z95.1: Presence of aortocoronary bypass graft

Z95.1, presence of aortocoronary bypass graft, is listed as a covered diagnosis in 9 Medicare billing and coding articles that apply to 32 HCPCS Level II codes, including A9500 (Technetium tc-99m sestamibi, diagnostic, per study dose), A9502 (Technetium tc-99m tetrofosmin, diagnostic, per study dose), A9505 (Thallium tl-201 thallous chloride, diagnostic, per…). The articles come from 3 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.

HCPCS Level II codes with Z95.1 as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
A9500Technetium tc-99m sestamibi, diagnostic, per study doseCarrier judgment—3
A9502Technetium tc-99m tetrofosmin, diagnostic, per study doseCarrier judgment—3
A9505Thallium tl-201 thallous chloride, diagnostic, per millicurieCarrier judgment—3
A9501Technetium tc-99m teboroxime, diagnostic, per study doseCarrier judgment—3
A9512Technetium tc-99m pertechnetate, diagnostic, per millicurieCarrier judgment—2
A9560Technetium tc-99m labeled red blood cells, diagnostic, per study dose, up to 30 millicuriesCarrier judgment—2
A9538Technetium tc-99m pyrophosphate, diagnostic, per study dose, up to 25 millicuriesCarrier judgment—2
J0153Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds)Special coverage instructions apply—3
J1250Injection, dobutamine hydrochloride, per 250 mgSpecial coverage instructions apply—3
J1245Injection, dipyridamole, per 10 mgSpecial coverage instructions apply—3
G0422Intensive cardiac rehabilitation; with or without continuous ecg monitoring with exercise, per sessionCarrier judgment—1
G0423Intensive cardiac rehabilitation; with or without continuous ecg monitoring; without exercise, per sessionCarrier judgment—1
A9700Supply of injectable contrast material for use in echocardiography, per studySpecial coverage instructions apply—2
Q9957Injection, perflutren lipid microspheres, per mlCarrier judgment—1
Q9956Injection, octafluoropropane microspheres, per mlCarrier judgment—1
Q9950Injection, sulfur hexafluoride lipid microspheres, per mlCarrier judgment—1
Q9955Injection, perflexane lipid microspheres, per mlCarrier judgment—1
J2785Injection, regadenoson, 0.1 mgCarrier judgment—1
J3490Unclassified drugsSpecial coverage instructions apply—1
G0278Iliac and/or femoral artery angiography, non-selective, bilateral or ipsilateral to catheter insertion, performed at the same time as cardiac catheterization and/or coronary angiography, includes positioning or placement of the catheter in the distal aorta or ipsilateral femoral or iliac artery, injection of dye, production of permanent images, and radiologic supervision and interpretation (list separately in addition to primary procedure)Carrier judgment—2
G0269Placement of occlusive device into either a venous or arterial access site, post surgical or interventional procedure (e.g., angioseal plug, vascular plug)Special coverage instructions apply—2
A9520Technetium tc-99m tilmanocept, diagnostic, up to 0.5 millicuriesCarrier judgment—1
C9176Tc-99m from domestically produced non-heu mo-99, [minimum 50 percent], full cost recovery add-on, per study doseSpecial coverage instructions apply—1
J0461Injection, atropine sulfate, 0.01 mgSpecial coverage instructions apply—2
J0280Injection, aminophyllin, up to 250 mgSpecial coverage instructions apply—2

7 more codes are listed. See every code with payment by region in Caduvo.

Medicare policy articles listing Z95.1

A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.

Other Z95 diagnoses (Presence of cardiac and vascular implants and grafts)

Frequently asked questions

Does Medicare cover Z95.1 (Presence of aortocoronary bypass graft)?

Medicare covers items and services, not diagnoses. 9 Medicare billing and coding articles list Z95.1 as a covered diagnosis for 32 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.

Which HCPCS codes can be billed with ICD-10 Z95.1?

The Level II codes from the policies most specific to this diagnosis are A9500 (Technetium tc-99m sestamibi, diagnostic, per study dose, 3 articles); A9502 (Technetium tc-99m tetrofosmin, diagnostic, per study dose, 3 articles); A9505 (Thallium tl-201 thallous chloride, diagnostic, per…, 3 articles); A9501 (Technetium tc-99m teboroxime, diagnostic, per study dose, 3 articles); A9512 (Technetium tc-99m pertechnetate, diagnostic, per millicurie, 2 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list Z95.1?

A53775 (Billing and Coding: Frequency and Duration for Cardiac Rehabilitation and Intensive Cardiac Rehabilitation); A58503 (Billing and Coding: Echocardiography for Myocardial Perfusion); A56494 (Billing and Coding: Cardiovascular Nuclear Medicine), and 6 more articles.

What is ICD-10-CM code Z95.1?

Z95.1 is the ICD-10-CM code for presence of aortocoronary bypass graft, in category Z95 (Presence of cardiac and vascular implants and grafts), chapter 22: Factors influencing health status and contact with health services.

Next steps

Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.

Chapter 22: Factors influencing health status and contact with health services · All diagnoses · HCPCS lookup