Coding Ahead
CasePilot
Medical Coding Assistant
CaseConsultant
Instant Email Coding Consultant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account
0 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account

Official Description

Tonsillectomy and adenoidectomy; younger than age 12

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

A tonsillectomy and adenoidectomy is a surgical procedure that involves the removal of the tonsils and adenoids, which are lymphoid tissues located in the throat and nasopharynx, respectively. This procedure is commonly performed on children under the age of 12 who may be experiencing recurrent infections, obstructive sleep apnea, or other related health issues. During the surgery, a mouth prop is utilized to keep the mouth open, allowing the surgeon clear access to the tonsils. Various techniques may be employed for the dissection of the tonsils, including the use of scissors, curettes, cautery, radiofrequency, laser ablation, or a harmonic scalpel. The standard approach involves making an incision in the mucosa with a sickle knife, followed by careful dissection of the tonsil from the surrounding tissue. Once the tonsil is fully detached, any remaining tissue is removed, and bleeding is managed through pressure, sutures, or cautery. The adenoids are also removed using specialized instruments such as an adenotome or adenoid curette, and the surgical site is thoroughly inspected to ensure complete removal of all tissue. This procedure is indicated for patients who are younger than 12 years of age, as denoted by the CPT® code 42820.

© Copyright 2026 Coding Ahead. All rights reserved.

CasePilot
Have a question about CPT® Code 42820?

Get instant expert-level answers from CasePilot, our coding assistant.

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"