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I74.3 ICD-10-CA code: Embolism and thrombosis of arteries of lower extremities

I74.3 is the ICD-10-CA code for “Embolism and thrombosis of arteries of lower extremities” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

I74.3

Embolism and thrombosis of arteries of lower extremities

Short description: Embolism & thromb arteries lower extrem

ICD-10-CA · Canada · Also written I743

Index terms

Entries in CIHI’s alphabetical index that lead to I74.3. Searching the index by the condition the note names is how coders reach this code.

  • Embolism (septic), femoral
  • Embolism (septic), artery, limb, lower
  • Embolism (septic), lower extremity, arterial
  • Thrombosis, thrombotic (multiple) (progressive) (septic) (vein) (vessel), femoral (superficial), artery
  • Thrombosis, thrombotic (multiple) (progressive) (septic) (vein) (vessel), artery, arteries (postinfectional), limb, lower

Notes for I74.3

As CIHI prints them, with any note I74.3 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • Embolism and thrombosis:• basilar (I63.0-I63.2, I65.1)• carotid (I63.0-I63.2,I65.2)• cerebral (I63.3-I63.5,I66.9)• complicating• abortion or ectopic or molar pregnancy (O00-O07, O08.2)• pregnancy, childbirth and the puerperium (O88.-)• coronary (I21-I25)• mesenteric (K55.0)• precerebral (I63.0-I63.2,I65.9)• pulmonary (I26.-)• renal (N28.0)• retinal (H34.-)• vertebral (I63.0-I63.2,I65.0)From I74 Arterial embolism and thrombosis
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)transient cerebral ischaemic attacks and related syndromes (G45.-)From Chapter 9: Diseases of the circulatory system (I00-I99)

Where I74.3 sits

  1. 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
  2. 2Block I70-I79Diseases of arteries, arterioles and capillaries
  3. 3Category I74Arterial embolism and thrombosis
  4. 4Valid code I74.3Embolism and thrombosis of arteries of lower extremities

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See I74.3 in the CIHI source

Frequently asked questions

What does ICD-10-CA code I74.3 mean?

I74.3 is the ICD-10-CA code for “Embolism and thrombosis of arteries of lower extremities” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is I74.3 in ICD-10-CA?

I74.3 sits under I74 Arterial embolism and thrombosis, within I70-I79 Diseases of arteries, arterioles and capillaries, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I74.3?

ICD-10-CA lists Includes, Excludes notes for I74.3, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside I74.3

I74.0Embolism and thrombosis of abdominal aortaI74.1Embolism and thrombosis of other and unspecified parts of aortaI74.2Embolism and thrombosis of arteries of upper extremitiesI74.4Embolism and thrombosis of arteries of extremities, unspecifiedI74.5Embolism and thrombosis of iliac arteryI74.8Embolism and thrombosis of other arteriesI74.9Embolism and thrombosis of unspecified artery