I77.77

Dissection of artery of lower extremity

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC ESRD V24

HCC107

Vascular Disease with Complications

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from I77.7Other arterial dissection
Excludes 2

dissection of aorta (I71.0-) dissection of coronary artery (I25.42)

Inherited from I77Other disorders of arteries and arterioles
Excludes 2

collagen (vascular) diseases (M30-M36) hypersensitivity angiitis (M31.0) pulmonary artery (I28.-)

Inherited from chapter 9Diseases of the circulatory system
Excludes 2

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.-)

Official Guidelines for I77.77

FY 2026 ›
I.C.9Chapter-specific guidanceChapter 9: Diseases of the Circulatory System (I00-I99)

Subsections

Find I77.77 in the alphabetic index

1 index path leads to this code