J99
✓ Billable
Respiratory disorders in diseases classified elsewhere
ICD-10-CM · FY2026 · Diseases of the Respiratory System
Code
J99
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Respiratory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- respiratory disorders in:
- amebiasis (A06.5)
- blastomycosis (B40.0-B40.2)
- candidiasis (B37.1)
- coccidioidomycosis (B38.0-B38.2)
- cystic fibrosis with pulmonary manifestations (E84.0)
- dermatomyositis (M33.01, M33.11)
- histoplasmosis (B39.0-B39.2)
- late syphilis (A52.72, A52.73)
- polymyositis (M33.21)
- Sjögren syndrome (M35.02)
- systemic lupus erythematosus (M32.13)
- systemic sclerosis (M34.81)
- Wegener's granulomatosis (M31.30-M31.31)
Code first
- underlying disease, such as:
- amyloidosis (E85.-)
- ankylosing spondylitis (M45.-)
- bronchomycosis (B49)
- 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?
ICD-10-CM code J99 represents Respiratory disorders in diseases classified elsewhere. It is a billable diagnosis code in the Diseases of the Respiratory System chapter, effective October 1, 2025 – September 30, 2026.
Is J99 billable?
Yes. J99 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is J99 in?
J99 belongs to the Diseases of the Respiratory System chapter (J00–J99) of ICD-10-CM.
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