Guidelines › Diabetes mellitus: type not documented and insulin use
Diabetes mellitus: type not documented and insulin use
Official text from the FY2027 ICD-10-CM Official Guidelines for Coding and Reporting. The wording is quoted exactly.
Guidelines I.C.4.a.2; I.C.4.a.3
“If the type of diabetes mellitus is not documented in the medical record the default is E11.-, Type 2 diabetes mellitus.”
“Additional code(s) should be assigned from category Z79 to identify the long-term (current) use of insulin, oral hypoglycemic drugs, or injectable non-insulin antidiabetic”
“Code Z79.4 should not be assigned if insulin is given temporarily to bring a type 2 patient's blood sugar under control during an encounter.”
Where this applies
The Guidelines are the authority for assigning codes, and following them is required under HIPAA. This page quotes them for convenience and is not a substitute for the official document. See the Terms and Disclaimer.