Structures and names Amino acids are exactly what they say they are! They are compounds containing an amino group, -NH2, and a carboxylic acid group, -COOH. The biologically important amino acids have the amino group attached to the carbon atom next door to the-COOH group. They are known as 2-amino acids.
Obesity, unspecified. 1  E66.9 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes. 3  This is the American ICD-10-CM version of E66.9.
Loss of weight Short description: Abnormal loss of weight. ICD-9-CM 783.21 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 783.21 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 2013 version of ICD-9-CM 783.21. More recent version(s) of ICD-9-CM 783.21: 2014 2015.