Chronic diseases of tonsils and adenoids (J35) ICD-10-CM
The J35 code range covers chronic diseases of tonsils and adenoids with 10 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the J35 Range 10 codes · 8 billable
- J35 Chronic diseases of tonsils and adenoidsNon-billable
- J35.0 Chronic tonsillitis and adenoiditisNon-billable
- J35.01 Chronic tonsillitis
- J35.02 Chronic adenoiditis
- J35.03 Chronic tonsillitis and adenoiditis
- J35.1 Hypertrophy of tonsils
- J35.2 Hypertrophy of adenoids
- J35.3 Hypertrophy of tonsils with hypertrophy of adenoids
- J35.8 Other chronic diseases of tonsils and adenoids
- J35.9 Chronic disease of tonsils and adenoids, unspecified
About the J35 Code Range
The ICD-10 codes J35.0 through J35.9 are used to identify various chronic diseases of the tonsils and adenoids. These codes cover persistent conditions such as chronic tonsillitis, chronic adenoiditis, hypertrophy (enlargement), and other related chronic disorders affecting these lymphatic tissues.
These codes help medical coders and healthcare professionals classify long-term conditions like chronic tonsillitis (also known as chronic disease of tonsils or caseous tonsillitis) under J35.01, and chronic adenoiditis (also called chronic adenoid disease or chronic nasopharyngitis) under J35.02. When both tonsils and adenoids are affected by chronic inflammation, J35.03 is appropriate. Enlargement issues of the tonsils or adenoids are respectively coded with J35.1 and J35.2, while simultaneous hypertrophy of both is captured by J35.3. More unusual or less specified chronic issues, such as tonsillar cysts or pharyngeal ulcers, fall under J35.8. If the chronic condition is unspecified, J35.9 is used. Understanding synonyms and alternate names linked to these codes assists in selecting the correct diagnosis code for billing and documentation, ensuring clarity for conditions like adenotonsillitis, tonsillar hyperplasia, or adenoid facies.
Questions About This Page
How many billable codes are in the J35 range?
Of the 10 codes in this range, 8 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the J35 range classify?
The range classifies chronic diseases of tonsils and adenoids. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
