What is the ICD-10 code for immunosuppressed status?

The ICD-10 code for drug-induced immunosuppression is D84.821, while unspecified immunosuppression is coded as D89.9.

How do you code immunosuppression due to HIV?

Use B20 for HIV-related immunosuppression, especially when AIDS-defining conditions are present.

ICD-10 Coding for Immunosuppressed Status(D84.821, D84.8, D89.9)

Save

Explore ICD-10 coding guidelines for immunosuppressed status, including drug-induced and HIV-related immunosuppression. Learn about documentation requirements and common coding pitfalls.

Also known as:

Immunocompromised StateImmune Deficiency

Related ICD-10 Code Ranges

Complete code families applicable to Immunosuppressed Status

D50-D89Primary Range

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

→

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
D84.821	Immunodeficiency due to drugs	Use when immunosuppression is directly linked to drug therapy.	Documentation of drug therapy causing immunosuppression Medication list showing immunosuppressants ≥30 days
D89.9	Unspecified disorder of immune mechanism	Use when the cause of immunosuppression is unknown after thorough evaluation.	Negative autoimmune panels Normal drug history
B20	Human immunodeficiency virus [HIV] disease	Use when HIV is the primary reason for immunosuppression.	HIV RNA >10 000 copies/mL CD4 count <200

Primary ICD-10-CM Codes

Immunodeficiency due to drugs

D84.821Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Unspecified disorder of immune mechanismD89.9

Immunodeficiency due to drugsD84.821

Asymptomatic HIV infection statusZ21

Documentation & Coding Risks

Avoid these common issues when documenting Immunosuppressed Status.

Using Z21 for symptomatic HIV patients.

Impact

Clinical: Misrepresentation of disease severity., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

Review patient symptoms and history, Ensure documentation supports code choice

Misclassifying drug-induced immunosuppression as an adverse effect.

Impact

Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate patient records and risk scores.

Mitigation

Use D84.821 with Z79.899 to indicate drug-induced immunosuppression.

Incorrect coding of immunosuppression

Impact

Failure to link immunosuppression to specific causes.

Mitigation

Regular training on documentation and coding updates.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with D84.821.

Primary Code

D84.821

Immunodeficiency due to drugs

Quick Navigation

ICD-10 codes4

Coding risks3

FAQs2

ICD-10 Coding for Immunosuppressed Status(D84.821, D84.8, D89.9)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for immunosuppressed status?

How do you code immunosuppression due to HIV?

Related condition guides