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J45.90

Non-billable

Unspecified asthma

J45.90 is the ICD-10-CM code for Unspecified asthma. It is a non-billable category code — use a more specific child code such as J45.901 for billing.

Status
Header (non-billable)
Chapter
J00-J99
Parent
J45.9
Subcodes
3
Edition
FY2026

J00-J99 Diseases of the respiratory system

Includes

  • •Asthmatic bronchitis NOS
  • •Childhood asthma NOS
  • •Late onset asthma

Frequently asked questions

What is ICD-10 code J45.90?
J45.90 is the ICD-10-CM code for "Unspecified asthma". It falls under J00-J99 Diseases of the respiratory system.
Is J45.90 a billable code?
No — J45.90 is a non-billable header code. Use a more specific child code (such as J45.901) for billing.
What are the subcodes of J45.90?
J45.90 has 3 more specific child codes, including J45.901, J45.902, J45.909.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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