2027 ICD-10-CM Diagnosis Code I77.89Other specified disorders of arteries and arterioles
ICD-10-CM Codes›I00–I99›I70-I79›I77
- Billable — Valid for Submission
- Chronic Condition
I77.89 is a billable ICD-10-CM diagnosis code for other specified disorders of arteries and arterioles. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 299 through 301. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified circulatory disease.
I77.89 no longer risk-adjusts for Medicare Advantage: it mapped to HCC 108 under the retired CMS-HCC V24 model through payment year 2025 but maps to no category in the live V28 model. It still risk-adjusts in the PACE (CMS-HCC V22) category 108, ESRD (V21) category 108, and ESRD (V24) category 108 for payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
I77.89 no longer risk-adjusts for Medicare Advantage: it maps to no payment category in the live CMS-HCC V28 model, although it still risk-adjusts in the other CMS models shown below.
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.
- Abnormality of aortic arch branch
- Abscess at site of aortic coarctation
- Abscess at site of arterial duct
- Abscess of aorta
- Acquired abnormality of aortic arch branch
- Acquired abnormality of common arterial trunk following repair of truncus arteriosus
- Acquired anomaly of pulmonary artery
- Acquired complete obstruction of aortic arch
- Acquired luminal obstruction of aortic arch
- Acquired luminal obstruction of aortic arch between left common carotid artery and right common carotid artery
- Acquired luminal obstruction of aortic arch between subclavian artery and common carotid artery
- Acquired luminal obstruction of aortic arch distal to subclavian artery
- Adductor canal syndrome
- Arterial stasis
- Arterial steal syndrome
- Bifurcation lesion of coronary artery
- Buckled innominate artery syndrome
- Coronary artery perforation
- Coronary steal syndrome
- Culprit lesion of coronary artery
- Cystic adventitial disease
- Cystic adventitial disease of popliteal artery
- Disorder of artery of upper limb
- Entrapment of blood vessel
- Erythrokeratoderma en cocardes
- Furcation lesion of coronary artery
- Hereditary dysplasia of blood vessel
- Hypertension due to aortic arch obstruction
- Idiopathic arterial calcification of infancy
- Infection of artery
- Inverse steal syndrome
- Left popliteal entrapment syndrome
- Malignant atrophic papulosis
- Middle aortic syndrome
- Non-atherosclerotic chronic arterial occlusive disease
- Obstruction of aortic arch
- Perforation of artery
- Perforation of ductus arteriosus following procedure
- Periaortic mass
- Polyarteritis
- Polyarteritis of kidney
- Popliteal entrapment syndrome
- Renal vasculitis
- Residual coarctation of aorta
- Right popliteal entrapment syndrome
- Segmental arterial mediolysis
- Slit-like coronary artery orifice
- Steal syndrome of hand
- Steal syndrome of upper limb
- STING-associated vasculopathy with onset in infancy
- Structural abnormality of coronary artery
- Structural abnormality of descending aorta
- Structural abnormality of dorsal nasal artery
- Structural abnormality of facial artery
- Structural abnormality of greater palatine artery
- Structural abnormality of internal carotid artery
- Structural abnormality of lacrimal artery
- Structural abnormality of lingual artery
- Structural abnormality of radial artery
- Structural abnormality of renal artery
- Structural abnormality of subclavian artery
- Structural abnormality of vertebral artery
- Tortuous carotid artery
- Variant dominance of coronary circulation
- Vasomotor arterial disorder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to I77.89: its own notes plus those printed at I77 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.
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.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
artery (wall) I77.89
Artery, arterial See Also: condition;
abscess I77.89
Degos' disease I77.89
Disease, diseased See Also: Syndrome;
Degos' I77.89
Disorder (of) See Also: Disease;
arteriole NEC I77.89
artery NEC I77.89
without rupture I77.89
artery I77.89
muscular coat, artery I77.89
Syndrome See Also: Disease;
Degos' I77.89
pectoral girdle I77.89
pectoralis minor I77.89
perabduction I77.89
artery entrapment I77.89
subcostal nerve compression I77.89
thoracic outlet (compression) G54.0
arterial I77.89
kidney I77.89
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Malignant Atrophic Papulosis
variously described as a vasculopathy, endovasculitis, or occlusive arteriopathy, this condition occurs in a benign cutaneous form and a lethal multiorgan systemic variant. it is characterized by a narrowing and occlusion of the lumen of small to medium-sized blood vessels, leading to ischemia and infarction in the involved organ systems. the etiology and pathophysiology are unknown.
Patient EducationClinical
Vascular Diseases
Your vascular system is your body's network of blood vessels. It includes your:
The full article covers:
- What are vascular diseases?
- What causes vascular diseases?
- Who is at risk for vascular diseases?
- What are the symptoms of vascular diseases?
- How are vascular diseases diagnosed?
- How are vascular diseases treated?
- Can vascular diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert I77.89 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I77.89Overview
What is the ICD-10 code for other specified disorders of arteries and arterioles?
The ICD-10-CM code for other specified disorders of arteries and arterioles is I77.89 (sometimes written as I7789). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is I77.89 (Other specified disorders of arteries and arterioles) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of arteries and arterioles on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does I77.89 group to?
When other specified disorders of arteries and arterioles is the principal diagnosis on an inpatient stay, it groups to MS-DRG 301, 300, 299, with relative weights from 0.7132 to 1.5840 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of I77.89?
Under the General Equivalence Mappings, other specified disorders of arteries and arterioles converts to ICD-9-CM 447.8 (arterial disease NEC). The mapping is approximate, so confirm the match fits the documentation.
Does I77.89 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. I77.89 mapped to HCC 108 in the retired CMS-HCC V24 model, which last determined payment in 2025, but it maps to no category in the live V28 model; see all codes that no longer risk-adjust. It still risk-adjusts in the PACE (CMS-HCC V22) category 108 (Vascular Disease), ESRD (V21) category 108 (Vascular Disease), and ESRD (V24) category 108 (Vascular Disease).
