Z79.85: Long-term (current) use of injectable non-insulin antidiabetic drugs

Z79.85, long-term (current) use of injectable non-insulin antidiabetic drugs, is listed as a covered diagnosis in 7 Medicare billing and coding articles that apply to 38 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 4 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 Z79.85 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—4
J1250Injection, dobutamine hydrochloride, per 250 mgSpecial coverage instructions apply—4
J1245Injection, dipyridamole, per 10 mgSpecial coverage instructions apply—4
J0461Injection, atropine sulfate, 0.01 mgSpecial coverage instructions apply—3
J0280Injection, aminophyllin, up to 250 mgSpecial coverage instructions apply—3
J3490Unclassified drugsSpecial coverage instructions apply—2
M1211Most recent glycemic status assessment (hba1c or gmi) level > 9.0%Carrier judgment—1
J0881Injection, darbepoetin alfa, 1 microgram (non-esrd use)Special coverage instructions apply—1
J0885Injection, epoetin alfa, (for non-esrd use), 1000 unitsSpecial coverage instructions apply—1
Q5106Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 unitsSpecial coverage instructions apply—1
J0882Injection, darbepoetin alfa, 1 microgram (for esrd on dialysis)Special coverage instructions apply—1
J0888Injection, epoetin beta, 1 microgram, (for non esrd use)Special coverage instructions apply—1
Q5105Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for esrd on dialysis), 100 unitsSpecial coverage instructions apply—1
J0887Injection, epoetin beta, 1 microgram, (for esrd on dialysis)Special coverage instructions apply—1
J0890Injection, peginesatide, 0.1 mg (for esrd on dialysis)Carrier judgment—1
Q4081Injection, epoetin alfa, 100 units (for esrd on dialysis)Special coverage instructions apply—1
A9700Supply of injectable contrast material for use in echocardiography, per studySpecial coverage instructions apply—2
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—1
A9500Technetium tc-99m sestamibi, diagnostic, per study doseCarrier judgment—1
A9502Technetium tc-99m tetrofosmin, diagnostic, per study doseCarrier judgment—1
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuriesCarrier judgment—1
A9505Thallium tl-201 thallous chloride, diagnostic, per millicurieCarrier judgment—1
A9526Nitrogen n-13 ammonia, diagnostic, per study dose, up to 40 millicuriesCarrier judgment—1
A4641Radiopharmaceutical, diagnostic, not otherwise classifiedCarrier judgment—1
A9501Technetium tc-99m teboroxime, diagnostic, per study doseCarrier judgment—1

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

Medicare policy articles listing Z79.85

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 Z79 diagnoses (Long term (current) drug therapy)

Frequently asked questions

Does Medicare cover Z79.85 (Long-term (current) use of injectable non-insulin…)?

Medicare covers items and services, not diagnoses. 7 Medicare billing and coding articles list Z79.85 as a covered diagnosis for 38 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 Z79.85?

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…, 4 articles); J1250 (Injection, dobutamine hydrochloride, per 250 mg, 4 articles); J1245 (Injection, dipyridamole, per 10 mg, 4 articles); J0461 (Injection, atropine sulfate, 0.01 mg, 3 articles); J0280 (Injection, aminophyllin, up to 250 mg, 3 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list Z79.85?

A56686 (Billing and Coding: HbA1c); A56795 (Billing and Coding: Erythropoiesis Stimulating Agents (ESAs)); A57132 (Billing and Coding: Bone Mass Measurement), and 4 more articles.

What is ICD-10-CM code Z79.85?

Z79.85 is the ICD-10-CM code for long-term (current) use of injectable non-insulin antidiabetic drugs, in category Z79 (Long term (current) drug therapy), 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