What is the ICD-10 code for acquired immunodeficiency syndrome?

The ICD-10 code for acquired immunodeficiency syndrome is B20, used for patients with active AIDS or HIV-related conditions.

When should Z21 be used instead of B20?

Z21 is used for asymptomatic HIV infection without a history of AIDS-defining conditions, while B20 is for active AIDS cases.

ICD-10 Coding for Acquired Immunodeficiency Syndrome(B20, O98.7)

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Comprehensive guide on ICD-10 coding for acquired immunodeficiency syndrome, including code B20 for AIDS and Z21 for asymptomatic HIV.

Also known as:

AIDSHIV Disease

Related ICD-10 Code Ranges

Complete code families applicable to Acquired Immunodeficiency Syndrome

A00-B99Primary Range

Certain infectious and parasitic diseases

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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
B20	Human immunodeficiency virus [HIV] disease	Use when the patient has an AIDS diagnosis or HIV-related conditions.	CD4 count <200 cells/mm³ Presence of opportunistic infections HIV-related conditions documented
Z21	Asymptomatic human immunodeficiency virus [HIV] infection status	Use when the patient is HIV positive without symptoms or history of AIDS.	No history of AIDS-defining conditions No current symptoms related to HIV

Primary ICD-10-CM Codes

Human immunodeficiency virus [HIV] disease

B20Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Asymptomatic human immunodeficiency virus [HIV] infection statusZ21

Human immunodeficiency virus [HIV] diseaseB20

Documentation & Coding Risks

Avoid these common issues when documenting Acquired Immunodeficiency Syndrome.

Omitting linkage between conditions and HIV

Impact

Clinical: Potential mismanagement of patient care., Regulatory: Non-compliance with coding standards., Financial: Loss of reimbursement due to incorrect coding.

Mitigation

Ensure all conditions are evaluated for potential HIV linkage., Regular training on documentation standards.

Using Z21 after an AIDS diagnosis

Impact

Reimbursement: Incorrect coding can lead to improper DRG assignment., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Inaccurate patient records and risk adjustment scores.

Mitigation

Always use B20 if the patient has a history of AIDS-defining conditions.

Incorrect HIV Status Coding

Impact

Using Z21 for patients with a history of AIDS-defining conditions.

Mitigation

Implement regular audits and training on HIV coding guidelines.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with B20.

Primary Code

B20

Human immunodeficiency virus [HIV] disease

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ICD-10 codes2

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ICD-10 Coding for Acquired Immunodeficiency Syndrome(B20, O98.7)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for acquired immunodeficiency syndrome?

When should Z21 be used instead of B20?

Related condition guides