What is the ICD-10 code for drug-induced immunodeficiency?

The ICD-10 code for drug-induced immunodeficiency is D84.821. It is used when immunodeficiency is directly linked to drug therapy.

How is Common Variable Immunodeficiency coded?

Common Variable Immunodeficiency is coded as D83.0, which requires lab confirmation of low IgG levels and poor vaccine response.

ICD-10 Coding for Immunodeficiency(D83.0, B96.2, D80.1)

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Explore detailed ICD-10 coding guidelines for immunodeficiency, including drug-induced and common variable immunodeficiency. Learn about documentation requirements and coding pitfalls.

Also known as:

Immune DeficiencyImmune System Disorder

Related ICD-10 Code Ranges

Complete code families applicable to Immunodeficiency

D50-D89Primary Range

Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

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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.	Serum IgG < 400 mg/dL Absent vaccine response
D84.821	Immunodeficiency due to drugs	Use when immunodeficiency is directly linked to drug therapy.	Documented use of immunosuppressive drugs Clinical evidence of immunodeficiency

Primary ICD-10-CM Codes

Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function

D83.0Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Nonfamilial hypogammaglobulinemiaD80.1

Unspecified disorder of immune mechanismD89.9

Documentation & Coding Risks

Avoid these common issues when documenting Immunodeficiency.

Vague documentation of immune status.

Impact

Clinical: May lead to misdiagnosis., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials.

Mitigation

Use specific lab values and clinical findings., Link drug use to immunodeficiency.

Using unspecified codes when specific cause is known.

Impact

Reimbursement: May lead to reduced reimbursement rates., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases accuracy of health data.

Mitigation

Use specific codes like D84.821 for drug-induced cases.

Incorrect code sequencing

Impact

Failure to sequence underlying conditions before immunodeficiency.

Mitigation

Educate coding staff on proper sequencing rules.

Frequently Asked Questions

Primary Code

D83.0

Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function

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