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Home/Diagnosis/ICD-10 Coding for Acquired Immunodeficiency Syndrome

ICD-10 Coding for Acquired Immunodeficiency Syndrome

B20
Z21

Complete ICD-10-CM coding and documentation guide for icd-10 coding for acquired immunodeficiency syndrome includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
AIDS
HIV Disease
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Key Information: ICD-10 Coding for Acquired Immunodeficiency Syndrome

Essential facts and insights about ICD-10 Coding for Acquired Immunodeficiency Syndrome

Use ICD-10 code B20 for human immunodeficiency virus [hiv] disease, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Human immunodeficiency virus [HIV] disease

Billable Code
B20
Billable

Diagnostic Criteria

  • • Presence of AIDS-defining conditions or low CD4 count

Applicable To

  • • AIDS
  • • AIDS-related complex
  • • HIV infection, symptomatic

Important Notes

  • • Once B20 is assigned, it should not revert to Z21.

Asymptomatic human immunodeficiency virus [HIV] infection status

Billable Code
Z21
Billable

Diagnostic Criteria

  • • No history of AIDS-defining conditions
  • • No current symptoms related to HIV

Applicable To

  • • HIV positive NOS

Important Notes

  • • Z21 should not be used if the patient has ever had an AIDS-defining condition.
Ancillary Codes

Additional codes that may be used with this diagnosis

O98.7-

HIV disease complicating pregnancy, childbirth and the puerperium

Use for pregnant patients with HIV, alongside B20 or Z21.

Frequently Asked Questions

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.

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