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Home/Diagnosis/ICD-10 Coding for Persistent Asthma

ICD-10 Coding for Persistent Asthma

J45.30
J45.40
J45.50

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

Also Known as:
Chronic Asthma
Long-term Asthma
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Key Information: ICD-10 Coding for Persistent Asthma

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

Use ICD-10 code J45.30 for mild persistent asthma, uncomplicated, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Mild persistent asthma, uncomplicated

Billable Code
J45.30
Billable

Diagnostic Criteria

clinical_criteria:
  • • Documented mild persistent asthma symptoms
clinical_validation_requirements:
  • • Daytime symptoms >2 days/week but not daily
  • • Nighttime awakenings 3-4 times/month
  • • FEV1 ≥80% predicted

Applicable To

  • • Mild persistent asthma without complications

Moderate persistent asthma, uncomplicated

Billable Code
J45.40
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • • Daily symptoms
  • • Nighttime awakenings >1 time/week but not nightly
  • • FEV1 60-80% predicted

Applicable To

  • • Moderate persistent asthma without complications

Severe persistent asthma, uncomplicated

Billable Code
J45.50
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • • Symptoms throughout the day
  • • Nighttime awakenings often nightly
  • • FEV1 <60% predicted

Applicable To

  • • Severe persistent asthma without complications
Ancillary Codes

Additional codes that may be used with this diagnosis

Z79.51

Long-term (current) use of inhaled steroids

Use when patient is on long-term inhaled corticosteroids.

Frequently Asked Questions

What is the ICD-10 code for moderate persistent asthma?

The ICD-10 code for moderate persistent asthma is J45.40. It is used when asthma is classified as moderate persistent without complications.

How is persistent asthma documented?

Persistent asthma documentation should include severity classification, symptom frequency, and objective measures like FEV1 or PEF values.

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