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ICD-10 Coding for Thrombotic Thrombocytopenic Purpura(M31.1, D59.31, D69.3)

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Learn about the ICD-10 coding for thrombotic thrombocytopenic purpura (TTP), including clinical validation, documentation requirements, and coding pitfalls.

Also known as:
TTPMoschcowitz syndrome
Related ICD-10 Code Ranges

Complete code families applicable to Thrombotic Thrombocytopenic Purpura

M00-M99Primary Range

Diseases of the musculoskeletal system and connective tissue

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Primary ICD-10-CM Codes
Thrombotic microangiopathy
M31.1
Differential Codes

Alternative codes to consider when ruling out similar conditions

Immune thrombocytopenic purpuraD69.3

Use when ADAMT

activity is normal and there is no microangiopathic hemolytic anemia.S13

Use when ADAMT

Documentation & Coding Risks

Avoid these common issues when documenting Thrombotic Thrombocytopenic Purpura.

Failing to document ADAMTS13 activity.

Impact

Clinical: Misdiagnosis of TTP vs ITP., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

Educate clinicians on documentation requirements., Implement checklist for TTP diagnosis.

Confusing TTP with ITP due to vague documentation.

Impact

Reimbursement: Incorrect coding can lead to claim denials or reduced reimbursement., Compliance: May result in non-compliance with coding guidelines., Data Quality: Affects accuracy of patient records and data reporting.

Mitigation

Ensure ADAMTS13 activity and schistocytes are documented.

Documentation of ADAMTS13 activity

Impact

Failure to document ADAMTS13 activity can lead to audit findings.

Mitigation

Implement mandatory documentation fields for ADAMTS13 activity.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with M31.1.