I82.529

Chronic embolism and thrombosis of unspecified iliac vein

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC267

Deep Vein Thrombosis and Pulmonary Embolism

CMS-HCC ESRD V24

HCC108

Vascular Disease

RxHCC V08

RXHCC215

Venous Thromboembolism

Coding notes

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

Inherited from I82.52Chronic embolism and thrombosis of iliac vein
Synonyms

Chronic embolism and thrombosis of common iliac vein Chronic embolism and thrombosis of external iliac vein Chronic embolism and thrombosis of internal iliac vein

Inherited from I82.5Chronic embolism and thrombosis of deep veins of low extrm
Excludes 1

personal history of venous embolism and thrombosis (Z86.718)

Use additional

code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)

Inherited from I82Other venous embolism and thrombosis
Excludes 2

venous embolism and thrombosis (of): cerebral (I63.6, I67.6) coronary (I21-I25) intracranial and intraspinal, septic or NOS (G08) intracranial, nonpyogenic (I67.6) intraspinal, nonpyogenic (G95.1) mesenteric (K55.0-) portal (I81) pulmonary (I26.-)

Code first

venous embolism and thrombosis complicating: abortion, ectopic or molar pregnancy (O00-O07, O08.7) pregnancy, childbirth and the puerperium (O22.-, O87.-)

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 I82.529

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

Subsections