ICD-10 Diagnosis Code M31.1

Thrombotic microangiopathy

Diagnosis Code M31.1

ICD-10: M31.1
Short Description: Thrombotic microangiopathy
Long Description: Thrombotic microangiopathy
This is the 2019 version of the ICD-10-CM diagnosis code M31.1

Valid for Submission
The code M31.1 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Systemic connective tissue disorders (M30-M36)
      • Other necrotizing vasculopathies (M31)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code M31.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 446.6 - Thrombot microangiopathy

  • Acquired thrombotic thrombocytopenic purpura
  • Acquired thrombotic thrombocytopenic purpura
  • Autoimmune thrombotic thrombocytopenic purpura
  • Capillary thrombosis
  • Capillary thrombosis
  • Drug induced thrombotic thrombocytopenic purpura
  • Thrombotic microangiopathy
  • Thrombotic microangiopathy
  • Thrombotic thrombocytopenic purpura
  • Thrombotic thrombocytopenic purpura
  • Upshaw-Schulman syndrome

Index of Diseases and Injuries
References found for the code M31.1 in the Index of Diseases and Injuries:

Information for Patients

Vascular Diseases

The vascular system is the body's network of blood vessels. It includes the arteries, veins and capillaries that carry blood to and from the heart. Problems of the vascular system are common and can be serious. Arteries can become thick and stiff, a problem called atherosclerosis. Blood clots can clog vessels and block blood flow to the heart or brain. Weakened blood vessels can burst, causing bleeding inside the body.

You are more likely to have vascular disease as you get older. Other factors that make vascular disease more likely include

  • Family history of vascular or heart diseases
  • Pregnancy
  • Illness or injury
  • Long periods of sitting or standing still
  • Any condition that affects the heart and blood vessels, such as diabetes or high cholesterol
  • Smoking
  • Obesity

Losing weight, eating healthy foods, being active and not smoking can help vascular disease. Other treatments include medicines and surgery.

  • Aortic arch syndrome (Medical Encyclopedia)
  • Arterial embolism (Medical Encyclopedia)
  • Arteriogram (Medical Encyclopedia)
  • Cerebral angiography (Medical Encyclopedia)
  • Duplex ultrasound (Medical Encyclopedia)
  • Venous insufficiency (Medical Encyclopedia)
  • Venous ulcers -- self-care (Medical Encyclopedia)

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