U.S. ICD-10-CM · FY 2027

I82.40 ICD-10-CM Code: Acute embolism and thrombosis of unspecified deep veins of lower extremity

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

I82.40

Acute embolism and thrombosis of unspecified deep veins of lower extremity

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where I82.40 sits

  1. 1

    Chapter 9

    Diseases of the circulatory system (I00-I99)

  2. 2

    Section

    Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)

  3. 3

    Category I82

    Other venous embolism and thrombosis

  4. 4

    Subcategory I82.4

    Acute embolism and thrombosis of deep veins of lower extremity

  5. 5

    Code I82.40

    Acute embolism and thrombosis of unspecified deep veins of lower extremity

More specific choices

Codes under I82.40

I82.40 is a non-billable category. Choose the child code that best matches the documented diagnosis.

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

I82.409

Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity

Documentation details

Notes for this code

Inclusion terms

  • Deep vein thrombosis NOS
  • DVT NOS

Code first

No “code first” instruction is listed for I82.40.

Use additional code

No “use additional code” instruction is listed for I82.40.

Excludes1

Conditions that should not be reported together with this code.

  • acute embolism and thrombosis of unspecified deep veins of distal lower extremity (I82.4Z-)
  • acute embolism and thrombosis of unspecified deep veins of proximal lower extremity (I82.4Y-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for I82.40.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code I82.40 mean?

I82.40 is the FY 2027 U.S. ICD-10-CM code for “Acute embolism and thrombosis of unspecified deep veins of lower extremity.”

Is I82.40 a billable or specific ICD-10-CM code?

No. I82.40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is I82.40 located in ICD-10-CM?

I82.40 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89) (I80–I89), under category I82, Other venous embolism and thrombosis and subcategory I82.4, Acute embolism and thrombosis of deep veins of lower extremity.

What coding notes are listed for I82.40?

Its listed inclusion terms are Deep vein thrombosis NOS; DVT NOS. No code-first instruction is listed. Excludes1 notes: acute embolism and thrombosis of unspecified deep veins of distal lower extremity (I82.4Z-); acute embolism and thrombosis of unspecified deep veins of proximal lower extremity (I82.4Y-). No Excludes2 note is listed.

Keep exploring

Related I82.4 codes

I82.41

Acute embolism and thrombosis of femoral vein

I82.42

Acute embolism and thrombosis of iliac vein

I82.43

Acute embolism and thrombosis of popliteal vein

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