2027 ICD-10-CM Diagnosis Code I75.81Atheroembolism of kidney
ICD-10-CM Codes›I00–I99›I70-I79›I75
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Risk Adjusts — HCC 264
- Chronic Condition
I75.81 is a billable ICD-10-CM diagnosis code for atheroembolism of kidney. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 698 through 700. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 64 closely related codes. Coders also document this condition as atheroembolism of bilateral renal arteries. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Aortic and peripheral arterial embolism or thrombosis.
For Medicare Advantage risk adjustment, I75.81 maps to CMS-HCC Category 264 (Vascular Disease with Complications) under the V28 model, adding a risk factor of about 0.455 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
I75.81 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Atheroembolism of bilateral renal arteries
- Atheroembolism of left renal artery
- Atheroembolism of renal arteries
- Atheroembolism of right renal artery
- Renal artery embolism
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to I75.81: its own notes plus those printed at I75 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- atherothrombotic microembolism
- cholesterol embolism
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name I75.81, its category, or a range that includes it.
Excludes2 3
These codes carry an Excludes2 note naming I75.81: its condition is not part of those codes, and both may be reported when the patient has both.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Atheroembolism of Kidney
a cholesterol plaque embolus that has become lodged in the renal vasculature.Embolism, Cholesterol
blocking of a blood vessel by cholesterol-rich atheromatous deposits, generally occurring in the flow from a large artery to small arterial branches. it is also called arterial-arterial embolization or atheroembolism which may be spontaneous or iatrogenic. patients with spontaneous atheroembolism often have painful, cyanotic digits of acute onset.
Convert I75.81 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I75.81Overview
What is the ICD-10 code for atheroembolism of kidney?
The ICD-10-CM code for atheroembolism of kidney is I75.81 (sometimes written as I7581). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is I75.81 (Atheroembolism of other sites) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report atheroembolism of kidney on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does I75.81 group to?
When atheroembolism of kidney is the principal diagnosis on an inpatient stay, it groups to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
Is I75.81 a CC or MCC?
CMS lists I75.81 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 64 closely related codes in its exclusion list.
Does I75.81 need an additional code?
When the condition applies, yes. The Use Additional Code note reads: code for any associated acute kidney failure and chronic kidney disease (N17.-, N18.-). The additional code is reported after I75.81.
What HCC is I75.81?
I75.81 (atheroembolism of kidney) maps to CMS-HCC Category 264 (Vascular Disease with Complications), commonly written as HCC 264, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 107 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. It does not map to any RxHCC in the Part D prescription drug model.
Does I75.81 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, I75.81 adds a risk adjustment factor of about 0.455 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.338 to 0.622 depending on the payment segment). A more severe related category (HCC 263) supersedes it when both are reported. See the full factor table on the HCC 264 category page.
