Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

Z09, encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm, is listed as a covered diagnosis in 18 Medicare billing and coding articles that apply to 74 HCPCS Level II codes, including J0153 (Injection, adenosine, 1 mg (not to be used to report any…), J1250 (Injection, dobutamine hydrochloride, per 250 mg), J1245 (Injection, dipyridamole, per 10 mg). The articles come from 5 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 Z09 as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
J0153Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds)Special coverage instructions apply—6
J1250Injection, dobutamine hydrochloride, per 250 mgSpecial coverage instructions apply—6
J1245Injection, dipyridamole, per 10 mgSpecial coverage instructions apply—6
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
J3490Unclassified drugsSpecial coverage instructions apply—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
J2785Injection, regadenoson, 0.1 mgCarrier judgment—3
J0461Injection, atropine sulfate, 0.01 mgSpecial coverage instructions apply—4
J0280Injection, aminophyllin, up to 250 mgSpecial coverage instructions apply—4
G0130Single energy x-ray absorptiometry (sexa) bone density study, one or more sites; appendicular skeleton (peripheral) (e.g., radius, wrist, heel)Special coverage instructions apply—2
G0279Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)Carrier judgment—1
C8903Magnetic resonance imaging with contrast, breast; unilateralSpecial coverage instructions apply—1
C8905Magnetic resonance imaging without contrast followed by with contrast, breast; unilateralSpecial coverage instructions apply—1
C8906Magnetic resonance imaging with contrast, breast; bilateralSpecial coverage instructions apply—1
C8908Magnetic resonance imaging without contrast followed by with contrast, breast; bilateralSpecial coverage instructions apply—1
A9700Supply of injectable contrast material for use in echocardiography, per studySpecial coverage instructions apply—3
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

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

Medicare policy articles listing Z09

3 more articles list Z09.

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.

Frequently asked questions

Does Medicare cover Z09 (Encounter for follow-up examination after completed…)?

Medicare covers items and services, not diagnoses. 18 Medicare billing and coding articles list Z09 as a covered diagnosis for 74 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 Z09?

The Level II codes from the policies most specific to this diagnosis are J0153 (Injection, adenosine, 1 mg (not to be used to report any…, 6 articles); J1250 (Injection, dobutamine hydrochloride, per 250 mg, 6 articles); J1245 (Injection, dipyridamole, per 10 mg, 6 articles); A9500 (Technetium tc-99m sestamibi, diagnostic, per study dose, 3 articles); A9502 (Technetium tc-99m tetrofosmin, diagnostic, per study dose, 3 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list Z09?

A56494 (Billing and Coding: Cardiovascular Nuclear Medicine); A56448 (Billing and Coding: Breast Imaging Mammography/Breast Echography (Sonography)/Breast MRI/Ductography); A56743 (Billing and Coding: Cardiovascular Nuclear Medicine), and 15 more articles.

What is ICD-10-CM code Z09?

Z09 is the ICD-10-CM code for encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm, in category Z09 (Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm), 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