J99

ICD-10Billable

Respiratory disorders in diseases classified elsewhere

Official ICD-10-CM descriptor (FY2026)

Respiratory disorders in diseases classified elsewhere

J99 is valid for submission on a claim: CMS flags it as a billable, specific code.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

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

Sequence the underlying condition before this code.

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)

Where this code sits

Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: Other diseases of the respiratory system (J96-J99)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.