ICD-10 Coding for Mixed Connective Tissue Disease(M35.1)
Complete ICD-10-CM coding and documentation guide for Mixed Connective Tissue Disease. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Mixed Connective Tissue Disease
M30-M36Primary Range
Systemic connective tissue disorders
This range includes codes for various systemic connective tissue disorders, including MCTD.
Key Information: ICD-10 code for mixed connective tissue disease
Essential facts and insights about Mixed Connective Tissue Disease
Primary ICD-10-CM Code for mixed connective tissue disease
Decision Criteria
clinical Criteria
- Presence of anti-U1-RNP antibodies and clinical criteria
documentation Criteria
- Detailed documentation of symptoms and lab results
Clinical Validation Requirements
- Anti-U1-RNP antibodies ≥1:1600
- Presence of clinical criteria such as synovitis, Raynaud's phenomenon, and sclerodactyly
Code-Specific Risks
- Misclassification with other connective tissue diseases
- Incorrect sequencing with manifestation codes
Coding Notes
- Ensure serological confirmation before coding M35.1.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Other specified systemic involvement of connective tissue
M35.89Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Mixed Connective Tissue Disease to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M35.1.
Impact
Clinical: Misdiagnosis or delayed treatment., Regulatory: Potential audit issues., Financial: Denied claims due to insufficient documentation.
Mitigation Strategy
Use specific clinical terms, Include detailed symptom descriptions
Impact
Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.
Mitigation Strategy
Ensure anti-U1-RNP antibodies are documented before coding.
Impact
Failure to sequence MCTD and its manifestations correctly.
Mitigation Strategy
Educate coding staff on sequencing rules.
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 Mixed Connective Tissue Disease, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Mixed Connective Tissue Disease
Use these documentation templates to ensure complete and accurate documentation for Mixed Connective Tissue Disease. These templates include all required elements for proper coding and billing.
Rheumatology Progress Note
Specialty: RheumatologyRequired Elements
- Subjective symptoms
- Objective findings
- Lab results
- Assessment and plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
Need help with ICD-10 coding for Mixed Connective Tissue Disease? Ask your questions below.