J35

ICD-10Non-billable category

Chronic diseases of tonsils and adenoids

Official ICD-10-CM descriptor (FY2026)

Chronic diseases of tonsils and adenoids

J35 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.

More specific codes under J35

J35.0Chronic tonsillitis and adenoiditiscategory
J35.1Hypertrophy of tonsils
J35.2Hypertrophy of adenoids
J35.3Hypertrophy of tonsils with hypertrophy of adenoids
J35.8Other chronic diseases of tonsils and adenoids
J35.9Chronic disease of tonsils and adenoids, unspecified

Where this code sits

Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: Other diseases of upper respiratory tract (J30-J39)

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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.