ICD-10-CM 2027
ICD-10 code for DVT (deep vein thrombosis)
I82.409
Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity
Confirmed by the official ICD-10-CM index entry “embolism (multiple) (paradoxical) › vein (acute) › deep (dvt)”. Page updated September 29, 2026.
About coding DVT
The ICD-10-CM code for DVT (deep vein thrombosis) is I82.409 (Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity). The official index lists 39 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I82.409.
It is also searched as blood clot in leg.
Within I82.40, choose I82.409 (unspecified lower extremity) only when documentation doesn't support a more specific option: right lower extremity (I82.401), left lower extremity (I82.402) and bilateral (I82.403).
Code first venous embolism and thrombosis complicating: abortion, ectopic or molar pregnancy (O00-O07, O08.7) and pregnancy, childbirth and the puerperium (O22.-, O87.-).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Related DVT codes
- I82.401 Acute embolism and thrombosis of unspecified deep veins of right lower extremity
- I82.402 Acute embolism and thrombosis of unspecified deep veins of left lower extremity
- I82.403 Acute embolism and thrombosis of unspecified deep veins of lower extremity, bilateral
- I82.411 Acute embolism and thrombosis of right femoral vein
- I82.412 Acute embolism and thrombosis of left femoral vein
- I82.413 Acute embolism and thrombosis of femoral vein, bilateral
- I82.419 Acute embolism and thrombosis of unspecified femoral vein
- I82.421 Acute embolism and thrombosis of right iliac vein
- I82.422 Acute embolism and thrombosis of left iliac vein
- I82.423 Acute embolism and thrombosis of iliac vein, bilateral
- I82.429 Acute embolism and thrombosis of unspecified iliac vein
- I82.431 Acute embolism and thrombosis of right popliteal vein
- I82.432 Acute embolism and thrombosis of left popliteal vein
- I82.433 Acute embolism and thrombosis of popliteal vein, bilateral
- I82.439 Acute embolism and thrombosis of unspecified popliteal vein
- I82.441 Acute embolism and thrombosis of right tibial vein
- I82.442 Acute embolism and thrombosis of left tibial vein
- I82.443 Acute embolism and thrombosis of tibial vein, bilateral
- I82.449 Acute embolism and thrombosis of unspecified tibial vein
- I82.451 Acute embolism and thrombosis of right peroneal vein
- I82.452 Acute embolism and thrombosis of left peroneal vein
- I82.453 Acute embolism and thrombosis of peroneal vein, bilateral
- I82.459 Acute embolism and thrombosis of unspecified peroneal vein
- I82.461 Acute embolism and thrombosis of right calf muscular vein
- I82.462 Acute embolism and thrombosis of left calf muscular vein
- I82.463 Acute embolism and thrombosis of calf muscular vein, bilateral
- I82.469 Acute embolism and thrombosis of unspecified calf muscular vein
- I82.491 Acute embolism and thrombosis of other specified deep vein of right lower extremity
- I82.492 Acute embolism and thrombosis of other specified deep vein of left lower extremity
- I82.493 Acute embolism and thrombosis of other specified deep vein of lower extremity, bilateral
- I82.499 Acute embolism and thrombosis of other specified deep vein of unspecified lower extremity
- I82.4Y1 Acute embolism and thrombosis of unspecified deep veins of right proximal lower extremity
- I82.4Y2 Acute embolism and thrombosis of unspecified deep veins of left proximal lower extremity
- I82.4Y3 Acute embolism and thrombosis of unspecified deep veins of proximal lower extremity, bilateral
- I82.4Y9 Acute embolism and thrombosis of unspecified deep veins of unspecified proximal lower extremity
- I82.4Z1 Acute embolism and thrombosis of unspecified deep veins of right distal lower extremity
- I82.4Z2 Acute embolism and thrombosis of unspecified deep veins of left distal lower extremity
- I82.4Z3 Acute embolism and thrombosis of unspecified deep veins of distal lower extremity, bilateral
- I82.4Z9 Acute embolism and thrombosis of unspecified deep veins of unspecified distal lower extremity
Common questions about DVT ICD-10 codes
What is the ICD-10 code for DVT?
- I82.409 — Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity. More specific codes apply when the documentation supports them: I82.401, I82.402, I82.403, I82.411 and others below.
What is the ICD-10 code for acute embolism and thrombosis of unspecified deep veins of right lower extremity?
- I82.401 — Acute embolism and thrombosis of unspecified deep veins of right lower extremity.
What is the ICD-10 code for acute embolism and thrombosis of unspecified deep veins of left lower extremity?
- I82.402 — Acute embolism and thrombosis of unspecified deep veins of left lower extremity.
What is the ICD-10 code for acute embolism and thrombosis of unspecified deep veins of lower extremity, bilateral?
- I82.403 — Acute embolism and thrombosis of unspecified deep veins of lower extremity, bilateral.
What is the ICD-10 code for acute embolism and thrombosis of right femoral vein?
- I82.411 — Acute embolism and thrombosis of right femoral vein.
What is the ICD-10 code for acute embolism and thrombosis of left femoral vein?
- I82.412 — Acute embolism and thrombosis of left femoral vein.
What is the ICD-10 code for acute embolism and thrombosis of femoral vein, bilateral?
- I82.413 — Acute embolism and thrombosis of femoral vein, bilateral.
Is I82.409 billable?
- Yes. I82.409 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I82.409 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I82.409 as a principal diagnosis.
Is I82.409 a CC or MCC?
- I82.409 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.