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Home/Diagnosis/ICD-10 Coding for Immunosuppressed Status

ICD-10 Coding for Immunosuppressed Status

D84.821
D89.9
B20

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

Also Known as:
Immunocompromised State
Immune Deficiency
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Key Information: ICD-10 Coding for Immunosuppressed Status

Essential facts and insights about ICD-10 Coding for Immunosuppressed Status

Use ICD-10 code D84.821 for immunodeficiency due to drugs, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Immunodeficiency due to drugs

Billable Code
D84.821
Billable

Diagnostic Criteria

  • • Documentation of drug therapy causing immunosuppression
  • • Medication list showing immunosuppressants ≥30 days

Applicable To

  • • Drug-induced immunosuppression

Important Notes

  • • Ensure documentation specifies the drug causing immunosuppression.

Unspecified disorder of immune mechanism

Billable Code
D89.9
Billable

Diagnostic Criteria

  • • Negative autoimmune panels
  • • Normal drug history

Applicable To

  • • Unspecified immunodeficiency

Important Notes

  • • Avoid using D89.9 without attempting to identify a specific cause.

Human immunodeficiency virus [HIV] disease

Billable Code
B20
Billable

Diagnostic Criteria

  • • HIV RNA >10,000 copies/mL
  • • CD4 count <200

Applicable To

  • • AIDS
  • • HIV disease resulting in other conditions

Important Notes

  • • Ensure documentation supports the presence of HIV-related conditions.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z79.899

Other long term (current) drug therapy

Use to indicate long-term use of medications causing immunosuppression.

Frequently Asked Questions

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.

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