ICD-10 Code for Adenoiditis
Also indexed as (chronic)
The ICD-10-CM code for adenoiditis is J35.02 — Chronic adenoiditis. This is the code the Alphabetic Index gives for adenoiditis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Billable
Which adenoiditis code should you use?
The Alphabetic Index lists 8 codes under Adenoiditis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
Adenoiditis acute
| recurrent | J03.91 | Acute recurrent tonsillitis, unspecified | |
| specified organism NEC | J03.80 | Acute tonsillitis due to other specified organisms | |
| staphylococcal | J03.80 | Acute tonsillitis due to other specified organisms | |
| streptococcal | J03.00 | Acute streptococcal tonsillitis, unspecified | |
| specified organism NEC › recurrent | J03.81 | Acute recurrent tonsillitis due to other specified organisms | |
| staphylococcal › recurrent | J03.81 | Acute recurrent tonsillitis due to other specified organisms | |
| streptococcal › recurrent | J03.01 | Acute recurrent streptococcal tonsillitis |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources