ICD-10 Coding for Thrombotic Thrombocytopenic Purpura(M31.1)
Complete ICD-10-CM coding and documentation guide for Thrombotic Thrombocytopenic Purpura. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Thrombotic Thrombocytopenic Purpura
M30-M36Primary Range
Systemic connective tissue disorders
This range includes codes for systemic connective tissue disorders, under which TTP is classified.
Coagulation defects, purpura and other hemorrhagic conditions
This range includes codes for hemorrhagic conditions, including immune thrombocytopenic purpura (ITP), which is a differential diagnosis for TTP.
Key Information: ICD-10 code for thrombotic thrombocytopenic purpura
Essential facts and insights about Thrombotic Thrombocytopenic Purpura
Primary ICD-10-CM Code for thrombotic thrombocytopenic purpura
Decision Criteria
clinical Criteria
- ADAMTS13 activity <10% confirms TTP.
documentation Criteria
- Document schistocytes on peripheral smear.
Applicable To
- Acquired TTP
- Congenital TTP
Excludes
- Immune thrombocytopenic purpura (D69.3)
Clinical Validation Requirements
- ADAMTS13 activity <10%
- Platelet count <30,000/μL
- Presence of schistocytes on peripheral smear
Code-Specific Risks
- Confusion with ITP if ADAMTS13 activity is not documented.
Coding Notes
- Ensure documentation specifies ADAMTS13 activity and presence of schistocytes to support TTP diagnosis.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Microangiopathic hemolytic anemia
D59.31Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Thrombotic Thrombocytopenic Purpura to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M31.1.
Impact
Clinical: Misdiagnosis of TTP vs ITP., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.
Mitigation Strategy
Educate clinicians on documentation requirements., Implement checklist for TTP diagnosis.
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 Strategy
Ensure ADAMTS13 activity and schistocytes are documented.
Impact
Failure to document ADAMTS13 activity can lead to audit findings.
Mitigation Strategy
Implement mandatory documentation fields for ADAMTS13 activity.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Thrombotic Thrombocytopenic Purpura, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Thrombotic Thrombocytopenic Purpura
Use these documentation templates to ensure complete and accurate documentation for Thrombotic Thrombocytopenic Purpura. These templates include all required elements for proper coding and billing.
Emergency Department Note for Suspected TTP
Specialty: Emergency MedicineRequired Elements
- Patient history
- Lab results
- Peripheral smear findings
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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