N17.1: Acute kidney failure with acute cortical necrosis

N17.1, acute kidney failure with acute cortical necrosis, is listed as a covered diagnosis in 4 Medicare billing and coding articles that apply to 20 HCPCS Level II codes, including G0299 (Direct skilled nursing services of a registered nurse (rn)…), G0300 (Direct skilled nursing services of a licensed practical…), C8900 (Magnetic resonance angiography with contrast, abdomen). 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 N17.1 as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
G0299Direct skilled nursing services of a registered nurse (rn) in the home health or hospice setting, each 15 minutesCarrier judgment—1
G0300Direct skilled nursing services of a licensed practical nurse (lpn) in the home health or hospice setting, each 15 minutesCarrier judgment—1
C8900Magnetic resonance angiography with contrast, abdomenSpecial coverage instructions apply—3
C8901Magnetic resonance angiography without contrast, abdomenSpecial coverage instructions apply—3
C8902Magnetic resonance angiography without contrast followed by with contrast, abdomenSpecial coverage instructions apply—3
C8909Magnetic resonance angiography with contrast, chest (excluding myocardium)Special coverage instructions apply—3
C8910Magnetic resonance angiography without contrast, chest (excluding myocardium)Special coverage instructions apply—3
C8911Magnetic resonance angiography without contrast followed by with contrast, chest (excluding myocardium)Special coverage instructions apply—3
C8912Magnetic resonance angiography with contrast, lower extremitySpecial coverage instructions apply—3
C8913Magnetic resonance angiography without contrast, lower extremitySpecial coverage instructions apply—3
C8914Magnetic resonance angiography without contrast followed by with contrast, lower extremitySpecial coverage instructions apply—3
C8918Magnetic resonance angiography with contrast, pelvisSpecial coverage instructions apply—3
C8919Magnetic resonance angiography without contrast, pelvisSpecial coverage instructions apply—3
C8920Magnetic resonance angiography without contrast followed by with contrast, pelvisSpecial coverage instructions apply—3
C8931Magnetic resonance angiography with contrast, spinal canal and contentsSpecial coverage instructions apply—2
C8932Magnetic resonance angiography without contrast, spinal canal and contentsSpecial coverage instructions apply—2
C8933Magnetic resonance angiography without contrast followed by with contrast, spinal canal and contentsSpecial coverage instructions apply—2
C8934Magnetic resonance angiography with contrast, upper extremitySpecial coverage instructions apply—2
C8935Magnetic resonance angiography without contrast, upper extremitySpecial coverage instructions apply—2
C8936Magnetic resonance angiography without contrast followed by with contrast, upper extremitySpecial coverage instructions apply—2

Medicare policy articles listing N17.1

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 N17 diagnoses (Acute kidney failure)

Frequently asked questions

Does Medicare cover N17.1 (Acute kidney failure with acute cortical necrosis)?

Medicare covers items and services, not diagnoses. 4 Medicare billing and coding articles list N17.1 as a covered diagnosis for 20 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 N17.1?

The Level II codes from the policies most specific to this diagnosis are G0299 (Direct skilled nursing services of a registered nurse (rn)…, 1 article); G0300 (Direct skilled nursing services of a licensed practical…, 1 article); C8900 (Magnetic resonance angiography with contrast, abdomen, 3 articles); C8901 (Magnetic resonance angiography without contrast, abdomen, 3 articles); C8902 (Magnetic resonance angiography without contrast followed…, 3 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list N17.1?

A56545 (Billing and Coding: Hospice - Renal Care); A56805 (Billing and Coding: Magnetic Resonance Angiography (MRA)); A56747 (Billing and Coding: Magnetic Resonance Angiography (MRA)), and 1 more article.

What is ICD-10-CM code N17.1?

N17.1 is the ICD-10-CM code for acute kidney failure with acute cortical necrosis, in category N17 (Acute kidney failure), chapter 14: Diseases of the genitourinary system.

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 14: Diseases of the genitourinary system · All diagnoses · HCPCS lookup