Chronic embolism and thrombosis of unspecified deep veins of distal lower extremity

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

I82.5Z1 Chronic embolism and thrombosis of unspecified deep veins of right distal lower extremity
I82.5Z2 Chronic embolism and thrombosis of unspecified deep veins of left distal lower extremity
I82.5Z3 Chronic embolism and thrombosis of unspecified deep veins of distal lower extremity, bilateral
I82.5Z9 Chronic embolism and thrombosis of unspecified deep veins of unspecified distal lower extremity

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Chronic embolism and thrombosis of unspecified deep veins of distal lower extremity

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from I82 Other venous embolism and thrombosis

Excludes2 - not included here

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.-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Embolism > vein > deep > calf > chronic
Embolism > vein > deep > lower leg > chronic
Thrombosis, thrombotic > vein > deep > calf > chronic
Thrombosis, thrombotic > vein > deep > lower leg > chronic

Codes in the same group

Code	Description	Status
I82.50	Chronic embolism and thrombosis of unspecified deep veins of lower extremity	Not billable
I82.51	Chronic embolism and thrombosis of femoral vein	Not billable
I82.52	Chronic embolism and thrombosis of iliac vein	Not billable
I82.53	Chronic embolism and thrombosis of popliteal vein	Not billable
I82.54	Chronic embolism and thrombosis of tibial vein	Not billable
I82.55	Chronic embolism and thrombosis of peroneal vein	Not billable
I82.56	Chronic embolism and thrombosis of calf muscular vein	Not billable
I82.59	Chronic embolism and thrombosis of other specified deep vein of lower extremity	Not billable
I82.5Y	Chronic embolism and thrombosis of unspecified deep veins of proximal lower extremity	Not billable