
 2010 ICD-9-CM Diagnosis Code 231.0 
  Carcinoma in situ of larynx
- Short description: Ca in situ larynx.
 - ICD-9-CM 231.0 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 231.0 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
 - You are viewing the 2010 version of ICD-9-CM 231.0.
 - More recent version(s) of ICD-9-CM 231.0: 2011 2012 2013 2014 2015.
 
Convert to ICD-10-CM: 
231.0 converts directly to:
- 2015/16 ICD-10-CM D02.0 Carcinoma in situ of larynx
 
 Approximate Synonyms
- Cancer in situ of larynx
 - Carcinoma in situ, larynx
 
231.0 Excludes 

- aryepiglottic fold or interarytenoid fold:
 
 Applies To
- Cartilage:
- arytenoid
 - cricoid
 - cuneiform
 - thyroid
 
 - Epiglottis:
- NOS
 - posterior surface
 - suprahyoid portion
 
 - Vocal cords (false) (true)