ICD-10 Coding for Immunodeficiency(D83.0, D84.821)
Complete ICD-10-CM coding and documentation guide for Immunodeficiency. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Immunodeficiency
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| D83.0 | Common Variable Immunodeficiency with predominant abnormalities of B-cell numbers and function | Use when CVID is confirmed by lab tests showing low IgG and poor vaccine response. |
|
| D84.821 | Immunodeficiency due to drugs | Use when immunodeficiency is directly linked to drug therapy. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for drug-induced immunodeficiency
Essential facts and insights about Immunodeficiency
Primary ICD-10-CM Codes for immunodeficiency
Decision Criteria
clinical Criteria
- Confirmed low IgG levels and poor vaccine response
Applicable To
- CVID with autoimmunity
Excludes
- Selective IgA deficiency (D80.2)
Clinical Validation Requirements
- Serum IgG < 400 mg/dL
- Absent vaccine response
Code-Specific Risks
- Misclassification if lab results are not documented.
Coding Notes
- Ensure lab confirmation of immunodeficiency before coding.
D84.821 - Immunodeficiency due to drugs
Use when immunodeficiency is directly linked to drug therapy.
Applicable To
- Drug-induced immunosuppression
Excludes
- Adverse effect of drugs (T36-T50)
Clinical Validation Requirements
- Documented use of immunosuppressive drugs
- Clinical evidence of immunodeficiency
Coding Notes
Ensure drug use is documented and linked to immunodeficiency.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Immunodeficiency to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code D83.0.
Impact
Clinical: May lead to misdiagnosis., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials.
Mitigation Strategy
Use specific lab values and clinical findings., Link drug use to immunodeficiency.
Impact
Reimbursement: May lead to reduced reimbursement rates., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases accuracy of health data.
Mitigation Strategy
Use specific codes like D84.821 for drug-induced cases.
Impact
Failure to sequence underlying conditions before immunodeficiency.
Mitigation Strategy
Educate coding staff on proper 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 Immunodeficiency, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Immunodeficiency
Use these documentation templates to ensure complete and accurate documentation for Immunodeficiency. These templates include all required elements for proper coding and billing.
Immunology Consult Note
Specialty: ImmunologyRequired Elements
- Diagnosis confirmation
- Lab results
- Infection history
- Treatment plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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