2026 ICD-10-CM Diagnosis Code J35.8Other chronic diseases of tonsils and adenoids
ICD-10-CM Codes›J00–J99›J30-J39›J35
- Billable — Valid for Submission
- Chronic Condition
J35.8 is a billable ICD-10-CM diagnosis code for other chronic diseases of tonsils and adenoids. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 154 through 156. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acute and chronic tonsillitis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Adenoid vegetations
- Amygdalolith
- Bilateral palatine tonsil hyperemia
- Bleeding of pharynx
- Cicatrix of adenoid
- Cicatrix of tonsil
- Congestion of throat
- Cryptic tonsil
- Cyst of pharynx
- Cyst of tonsil
- Discharge of tonsil
- Exudate on tonsils
- Finding of size of tonsil
- Hyperemia of pharynx
- Left tonsillar hemorrhage
- Peritonsillar cyst
- Pharyngeal hemorrhage
- Remnant adenoids
- Right tonsillar hemorrhage
- Size of adenoids - finding
- Small adenoids
- Small tonsils
- Tonsil asymmetry
- Tonsil congested
- Tonsillar debris
- Tonsillar hemorrhage
- Tonsillar remnants
- Tonsillar retention cyst
- Tonsillar tag
- Tonsils meet in middle
- Ulcer of pharynx
- Ulcer of tonsil
- Ulcer of tonsil due to amygdalolith
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Adenoid vegetations
- Amygdalolith
- Calculus, tonsil
- Cicatrix of tonsil (and adenoid)
- Tonsillar tag
- Ulcer of tonsil
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Amygdalolith J35.8
Cicatrix (adherent) (contracted) (painful) (vicious) See Also: Scar; L90.5
adenoid (and tonsil) J35.8
tonsil (and adenoid) J35.8
Concretion See Also: Calculus;
tonsil J35.8
Growth (fungoid) (neoplastic) (new) See Also: Neoplasm;
adenoid (vegetative) J35.8
Hemorrhage, hemorrhagic (concealed) R58
adenoid J35.8
peritonsillar tissue J35.8
tonsil J35.8
tonsillaris J35.8
Necrosis, necrotic (ischemic) See Also: Gangrene;
tonsil J35.8
tonsil J35.8
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Adenoids
Adenoids are a patch of tissue that is high up in the throat, just behind the nose. They, along with the tonsils, are part of the lymphatic system. The lymphatic system clears away infection and keeps body fluids in balance. The adenoids and tonsils work by trapping germs coming in through the mouth and nose.
The full article covers:
- What are adenoids?
- What are enlarged adenoids?
- What causes enlarged adenoids?
- What problems can enlarged adenoids cause?
- How can enlarged adenoids be diagnosed?
- What are the treatments for enlarged adenoids?
- What is an adenoidectomy and why might I my child need one?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert J35.8 to ICD-9-CMHistory
Code HistoryHistory
Questions About J35.8Overview
What is the ICD-10 code for other chronic diseases of tonsils and adenoids?
The ICD-10-CM code for other chronic diseases of tonsils and adenoids is J35.8 (sometimes written as J358). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is J35.8 (Chronic diseases of tonsils and adenoids) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other chronic diseases of tonsils and adenoids on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does J35.8 group to?
When other chronic diseases of tonsils and adenoids is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 154, 155, 156, with relative weights from 0.6911 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of J35.8?
Under the General Equivalence Mappings, other chronic diseases of tonsils and adenoids converts to ICD-9-CM 474.2 (adenoid vegetations) and 474.8 (chr T & A dis NEC). The mapping is approximate, so confirm the match fits the documentation.
