2027 ICD-10-CM Diagnosis Code I77.2Rupture of artery
ICD-10-CM Codes›I00–I99›I70-I79›I77
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
I77.2 is a billable ICD-10-CM diagnosis code for rupture of artery. 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. 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 11 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified circulatory disease.
I77.2 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
I77.2 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.
- Acquired coronary artery fistula
- Acquired tracheal fistula
- Acquired tracheo-arterial fistula
- Anterior spinal artery rupture
- Aortic fistula
- Aortocolonic fistula
- Aorto-esophageal fistula
- Aortointestinal fistula
- Aortojejunal fistula
- Arterial-enteric fistula
- Carotid artery rupture
- Carotid cavernous fistula
- Colovascular fistula
- Coronary artery fistula to left atrium
- Coronary artery fistula to right atrium
- Coronary fistulae from left ventricle
- Erosion of artery
- Fistula of artery
- Fistula of coronary sinus
- Injury of anterior spinal artery
- Injury of anterior tibial artery
- Injury of axillary artery
- Injury of brachial artery
- Injury of iliac artery
- Injury of popliteal artery
- Injury of posterior tibial artery
- Injury of radial artery
- Injury of radial blood vessel
- Injury of subclavian artery
- Injury of ulnar artery
- Jejunal fistula
- Rupture anterior tibial artery
- Rupture axillary artery
- Rupture brachial artery
- Rupture femoral artery
- Rupture iliac artery
- Rupture of artery
- Rupture of transplanted artery
- Rupture popliteal artery
- Rupture posterior tibial artery
- Rupture radial artery
- Rupture subclavian artery
- Rupture ulna artery
- Ulcer of artery
- Ulnar blood vessel injury
- Vertebral artery rupture
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to I77.2: 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.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Erosion of artery
- Fistula of artery
- Ulcer of artery
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- traumatic rupture of artery - see injury of blood vessel by body region
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
atheromatous I77.2
suppurative I77.2
aorta-duodenal I77.2
artery I77.2
artery I77.2
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Rupture of Artery
a tearing of the arterial wall.
Convert I77.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I77.2Overview
What is the ICD-10 code for rupture of artery?
The ICD-10-CM code for rupture of artery is I77.2 (sometimes written as I772). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is I77.2 (Other disorders of arteries and arterioles) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report rupture of artery on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does I77.2 group to?
When rupture of artery 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.
Is I77.2 a CC or MCC?
CMS lists I77.2 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 11 closely related codes in its exclusion list.
What is the ICD-9 equivalent of I77.2?
Under the General Equivalence Mappings, rupture of artery converts to ICD-9-CM 447.2 (rupture of artery). The mapping is a direct match.
Does I77.2 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. I77.2 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).
