Heparin-Induced Thrombocytopenia (HIT) Residuals

DC 7705Hematologic/Lymphatic38 CFR 4.117, DC 7705

A serious condition where the blood thinner heparin causes your immune system to attack your platelets and form dangerous blood clots. Even after the initial episode resolves, you may have lasting damage from clots and need lifelong alternative blood thinners. The VA rates HIT residuals based on anticoagulation needs and residual organ or limb damage.

How the VA rates this condition

The VA rates this condition based on the type and intensity of treatment you require. Higher ratings correspond to more aggressive treatment regimens, such as daily medication, insulin dependence, or the need for ongoing medical management.

Diagnostic code

DC 7705

Rating range

0% – 60%

Rating levels

Rating criteria are defined in 38 CFR 4.117, DC 7705. This guide presents a plain-language summary and is not a substitute for the full regulatory text. Always consult a VSO or VA-accredited attorney for case-specific advice.

Rating Levels

Your HIT caused severe clotting events leading to major organ or limb damage, such as limb amputation, pulmonary embolism residuals, or stroke. You need lifelong anticoagulation and have significant limitations.

What the VA looks for

Major thrombotic event documented (PE, stroke, or limb ischemia requiring amputation)
Lifelong alternative anticoagulation required
Chronic pulmonary hypertension from prior PE
Significant functional limitations from thrombotic damage
Multiple organ systems affected by clotting events

Common Pitfalls

⚠Not documenting the original HIT episode with positive HIT antibody testing — the specific laboratory confirmation is essential to establish the diagnosis and distinguish it from other causes of low platelets.
⚠Failing to file separate claims for each organ or limb damaged by HIT-related blood clots — amputation residuals, pulmonary embolism damage, stroke residuals, and post-thrombotic syndrome can all be rated independently.
⚠Not emphasizing the lifelong medical burden of heparin avoidance — this complicates every future surgery, hospitalization, and medical procedure, requiring special planning and alternative anticoagulation protocols.
⚠Not connecting HIT to military service — heparin is routinely used during surgeries and treatments in military hospitals, and the HIT reaction is a direct consequence of that military medical care.

Related DBQ Forms

DBQ Hematologic and Lymphatic Conditions

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Condition Rating Guides

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Heparin-Induced Thrombocytopenia (HIT) Residuals

How the VA rates this condition

Diagnostic code

DC 7705

Rating range

0% – 60%

Rating levels

Rating Levels

What the VA looks for

Major thrombotic event documented (PE, stroke, or limb ischemia requiring amputation)
Lifelong alternative anticoagulation required
Chronic pulmonary hypertension from prior PE
Significant functional limitations from thrombotic damage
Multiple organ systems affected by clotting events

Common Pitfalls

⚠Not documenting the original HIT episode with positive HIT antibody testing — the specific laboratory confirmation is essential to establish the diagnosis and distinguish it from other causes of low platelets.

⚠Failing to file separate claims for each organ or limb damaged by HIT-related blood clots — amputation residuals, pulmonary embolism damage, stroke residuals, and post-thrombotic syndrome can all be rated independently.

⚠Not emphasizing the lifelong medical burden of heparin avoidance — this complicates every future surgery, hospitalization, and medical procedure, requiring special planning and alternative anticoagulation protocols.

⚠Not connecting HIT to military service — heparin is routinely used during surgeries and treatments in military hospitals, and the HIT reaction is a direct consequence of that military medical care.