ICD-10-CM 2027
ICD-10 code for adenoids hyperplasia
From the official ICD-10-CM alphabetic index entry “Hyperplasia, hyperplastic › adenoids”. Page updated September 29, 2026.
About coding adenoids hyperplasia
The ICD-10-CM code for adenoids hyperplasia is J35.2 (Hypertrophy of adenoids).
Within J35 (chronic diseases of tonsils and adenoids), J35.2 is specifically for hypertrophy of adenoids. Related codes cover chronic tonsillitis and adenoiditis (J35.0), hypertrophy of tonsils (J35.1), hypertrophy of tonsils with hypertrophy of adenoids (J35.3), other chronic diseases of tonsils and adenoids (J35.8) and chronic disease of tonsils and adenoids, unspecified (J35.9).
Don't report J35.2 together with the conditions in its Excludes1 note: hypertrophy of adenoids with adenoiditis (J35.0-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for J35.2)
- hypertrophy of adenoids with adenoiditis (J35.0-)
Common questions about adenoids hyperplasia ICD-10 codes
What is the ICD-10 code for adenoids hyperplasia?
- J35.2 — Hypertrophy of adenoids.
Is J35.2 billable?
- Yes. J35.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J35.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J35.2 as a principal diagnosis.
Is J35.2 a CC or MCC?
- No. J35.2 is neither a CC nor an MCC under MS-DRG v44.0.