Crystal's MCW Coder Hub🩺 CPT Code 42825: Tonsillectomy, younger than age 12
Description
CPT 42825 describes a tonsillectomy, which is the surgical removal of the tonsils, performed on a patient younger than 12 years of age. This code is used whether it is the patient’s first tonsillectomy (primary) or a repeat procedure (secondary), for example, to remove regrowth of tonsillar tissue. The age of the patient on the date of service is the sole determining factor between this code and its counterpart, 42826 (age 12 or older).
The procedure involves the complete or partial excision of the palatine tonsils from the tonsillar fossa in the oropharynx. This is typically performed to address conditions like chronic or recurrent tonsillitis, tonsillar hypertrophy causing airway obstruction or sleep apnea, or a peritonsillar abscess that is unresponsive to other treatments.
CPT/HCPCS Details
- wRVU (Work Relative Value Units): 4.96
- Note: RVUs are subject to change annually based on the Medicare Physician Fee Schedule. Always verify the current value.
- Assistant at Surgery Payable: Yes, an assistant surgeon may be permissible if medical necessity is documented. The modifier will typically be -80 or -82. Payer policies can vary.
- Global Period: 90 days. This means that all routine, related pre-operative and post-operative care provided by the surgeon within this period is included in the payment for the surgery itself.
Common ICD-10-CM Diagnoses
The following ICD-10-CM codes are frequently used to establish medical necessity for a tonsillectomy in this age group.
| ICD-10-CM Code | Description | HCC (v28) Status | Notes |
|---|---|---|---|
| J35.1 | Hypertrophy of tonsils | No | A very common diagnosis, often linked to airway obstruction. |
| J35.01 | Chronic tonsillitis | No | Used for persistent inflammation and infection of the tonsils. |
| J35.03 | Chronic tonsillitis and adenoiditis | No | Use if both conditions are chronic. Note that this code alone doesn’t support billing 42820. |
| G47.33 | Obstructive sleep apnea (pediatric) (adult) | Yes (HCC 210) | A significant diagnosis. Tonsillar hypertrophy is a primary cause in children. |
| J36 | Peritonsillar abscess | No | Often requires incision and drainage first, but tonsillectomy may follow. |
| J03.90 | Acute tonsillitis, unspecified | No | Usually indicates a single episode; a pattern of recurrent episodes is needed to justify surgery. |
Inclusions
The payment for 42825 is considered a “package” and bundles the following procedural components:
- Preoperative evaluation on the day of the surgery.
- The surgical approach and exposure of the tonsils.
- Excision of both tonsils (this code is bilateral by definition).
- Any method of removal (e.g., cold steel dissection, electrocautery, coblation, snare).
- Achieving hemostasis (control of bleeding) at the end of the primary procedure.
- Application of any local anesthetic by the surgeon.
- Standard postoperative care during the 90-day global period (e.g., follow-up visits to check for healing).
Exclusions
Certain procedures and services are not included and may be billed separately if performed and documented appropriately:
- Adenoidectomy: If an adenoidectomy is performed at the same time, you must use code 42820 (Tonsillectomy and adenoidectomy, younger than age 12) instead of 42825.
- Control of Postoperative Hemorrhage: If the patient returns to the operating room for control of bleeding after the initial surgery, use the appropriate hemorrhage control code, such as 42961 or 42962. Do not use 42825 again.
- Significant, Separately Identifiable E/M Service: If the surgeon performs a distinct evaluation for a separate medical issue on the same day as the surgery, it may be billed with modifier -25.
- Anesthesia: Anesthesia services are always billed separately by the anesthesia provider.
- Radical Tonsillectomy: For malignancy, a more extensive procedure is performed. See codes like 42842-42845.
MS-DRG Information
When performed in an inpatient setting, 42825 typically maps to the following MS-DRGs, depending on the principal diagnosis and the presence of complications or comorbidities (CC/MCC).
- MS-DRG 129: Major Head & Neck Procedures w MCC
- MS-DRG 130: Major Head & Neck Procedures w CC
- MS-DRG 131: Major Head & Neck Procedures w/o CC/MCC
Tip
The specific DRG is determined by the full clinical picture, especially any secondary diagnoses that qualify as a CC or MCC.
CPT Code Tree
This illustrates where 42825 is located within the CPT codebook’s hierarchy.
Coding Examples & Scenarios
Scenario 1: Straightforward Chronic Tonsillitis
- Clinical Summary: A 7-year-old boy presents with a documented history of seven episodes of strep throat in the past year. Examination reveals cryptic and enlarged tonsils. The decision is made to proceed with tonsillectomy. The surgery is performed without complication.
- CPT Code: 42825
- ICD-10-CM Code: J35.01 (Chronic tonsillitis)
Scenario 2: Obstructive Sleep Apnea
- Clinical Summary: An 8-year-old girl is referred by her pediatrician for evaluation of snoring, witnessed apneas, and daytime sleepiness. A sleep study confirms moderate obstructive sleep apnea. Examination shows 3+ hypertrophic tonsils that nearly meet in the midline. A tonsillectomy is performed to relieve the airway obstruction.
- CPT Code: 42825
- ICD-10-CM Codes:
Scenario 3: Incorrect Coding (Tonsillectomy with Adenoidectomy)
- Clinical Summary: A 5-year-old with both chronic tonsillitis and adenoid hypertrophy undergoes surgery. The surgeon removes both the tonsils and the adenoids.
- Correct CPT Code: 42820 (Tonsillectomy and adenoidectomy, younger than age 12)
- Incorrect CPT Code: Billing 42825 and 42830 (Adenoidectomy, primary; younger than age 12) separately. These are bundled into 42820.