J35.1 – Hypertrophy of tonsils
ICD-10-CM 2027 diagnosis code · Other diseases of upper respiratory tract
ICD-10-CM code
J35.1
- Code
J35.1(claims format:J351)- Description
- Hypertrophy of tonsils
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 10. Diseases of the respiratory system (J00-J99)
- Block
- J30-J39 Other diseases of upper respiratory tract
- Parent codes
- J35
Notes for J35.1
Applicable to:
- Enlargement of tonsils
Excludes1 (not coded here):
- hypertrophy of tonsils with tonsillitis (J35.0-)
Index terms for J35.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in J35
Frequently asked questions
What is ICD-10 code J35.1?
J35.1 is the ICD-10-CM code for hypertrophy of tonsils, in the block J30-J39 (Other diseases of upper respiratory tract).
Is J35.1 a billable code?
Yes. J35.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does J35.1 belong to?
It belongs to category J35 – Chronic diseases of tonsils and adenoids.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.