J86

ICD-10Non-billable category

Pyothorax

Official ICD-10-CM descriptor (FY2026)

Pyothorax

J86 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Excludes1

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

abscess of lung (J85.-)
pyothorax due to tuberculosis (A15.6)

Use additional code

Report an additional code to identify the associated condition.

code (B95-B97) to identify infectious agent.

More specific codes under J86

Where this code sits

Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: Suppurative and necrotic conditions of the lower respiratory tract (J85-J86)

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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.