J99

Billable

Respiratory disorders in diseases classified elsewhere

J99 is the ICD-10-CM code for Respiratory disorders in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
J00-J99
Edition
FY2026

J00-J99 Diseases of the respiratory system

What this means — in plain language

MedlinePlus · NIH

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease. If all types of lung disease are lumped together, it is the number three killer in the United States. The term lung…

Read more about Lung Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

Code first

  • underlying disease, such as:
  • amyloidosis (E85.-)
  • ankylosing spondylitis (M45.-)
  • congenital syphilis (A50.-)
  • cryoglobulinemia (D89.1)
  • early congenital syphilis (A50.0-)
  • plasminogen deficiency (E88.02)
  • schistosomiasis (B65.0-B65.9)

Frequently asked questions

What is ICD-10 code J99?
J99 is the ICD-10-CM code for "Respiratory disorders in diseases classified elsewhere". It falls under J00-J99 Diseases of the respiratory system.
Is J99 a billable code?
Yes — J99 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from J99?
Excludes1 (not coded here): respiratory disorders in:; amebiasis (A06.5); blastomycosis (B40.0-B40.2); candidiasis (B37.1).

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

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