463Acute tonsillitis
- Legacy / Not Valid for Submission
- Replaced October 1, 2015
463 is a legacy ICD-9-CM diagnosis code for acute tonsillitis. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is J03.90 (Acute tonsillitis, unspecified), flagged as an approximate match.
Code Identity
Convert 463 to ICD-10-CM
Based on the final CMS General Equivalence Mappings (GEMs), 463 crosswalks to the following ICD-10-CM code.
Index of Diseases References
Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 463. Tap the icons for the official index conventions.
- Adenoiditis 474.01
- acute 463
- Gangrene gangrenous anemia artery cellulitis dermatitis dry infective moist pemphigus septic skin stasis ulcer 785.4
- tonsillitis acute 463
- Infection infected infective opportunistic 136.9
- tonsil faucial lingual pharyngeal 474.00
- acute or subacute 463
- tonsil faucial lingual pharyngeal 474.00
- Tonsillitis acute catarrhal croupous follicular gangrenous infective lacunar lingual malignant membranous phlegmonous pneumococcal pseudomembranous purulent septic staphylococcal subacute suppurative toxic ulcerative vesicular viral 463
- with influenza flu or grippe SEE ALSO Influenza 487.1
- chronic 474.00
- diphtheritic membranous 032.0
- hypertrophic 474.00
- influenzal SEE ALSO Influenza 487.1
- parenchymatous 475
- streptococcal 034.0
- tuberculous SEE ALSO Tuberculosis 012.8
- Vincent s 101
Information for Patients
Tonsillitis
Tonsils are lumps of tissue at the back of the throat. There are two of them, one on each side. Along with the adenoids, tonsils are part of the lymphatic system. The lymphatic system clears away infection and keeps body fluids in balance. Tonsils and adenoids work by trapping the germs coming in through the mouth and nose.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Questions About 463
Is 463 (acute tonsillitis) still a valid code?
No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement J03.90.
What is the ICD-10 replacement for 463?
The General Equivalence Mappings crosswalk this code to ICD-10-CM J03.90 (Acute tonsillitis, unspecified). The match is flagged as approximate, so confirm it against the clinical documentation before use.
What did 463 mean?
In the final ICD-9-CM release, this code described acute tonsillitis. It sat in block 463 Acute tonsillitis under Diseases of the respiratory system (460–519).
