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Home/Diagnosis/ICD-10 Coding for Allergic Asthma

ICD-10 Coding for Allergic Asthma

J45.909
J45.40

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

Also Known as:
Extrinsic Asthma
Atopic Asthma
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Key Information: ICD-10 Coding for Allergic Asthma

Essential facts and insights about ICD-10 Coding for Allergic Asthma

Use ICD-10 code J45.909 for unspecified asthma, uncomplicated, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Unspecified asthma, uncomplicated

Billable Code
J45.909
Billable

Diagnostic Criteria

  • • Presence of asthma symptoms without specified severity or complications.

Applicable To

  • • Asthma NOS

Important Notes

  • • Ensure documentation specifies the type of asthma and any related allergic conditions.

Moderate persistent asthma, uncomplicated

Billable Code
J45.40
Billable

Diagnostic Criteria

  • • Documented moderate persistent asthma
  • • Spirometry results showing FEV1 between 60-80% predicted

Applicable To

  • • Moderate persistent asthma

Important Notes

  • • Ensure documentation includes severity and treatment details.
Ancillary Codes

Additional codes that may be used with this diagnosis

J30.1

Allergic rhinitis due to pollen

Use when allergic rhinitis is present alongside asthma.

Z79.51

Long term (current) use of inhaled steroids

Use to document ongoing inhaled steroid therapy.

Frequently Asked Questions

What is the ICD-10 code for allergic asthma?

The ICD-10 code for allergic asthma is J45.909 for unspecified asthma, but more specific codes like J45.40 for moderate persistent asthma should be used when possible.

How do you document allergic asthma?

Document allergic asthma by specifying the severity, any complications, and known triggers or allergens. Include spirometry results and treatment plans.

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