Type 2 diabetes mellitus with diabetic ketoacidosis
In this entry Coding Clinic for ICD-9-CM states that a coder must assign E13.10, Other specified diabetes mellitus with ketoacidosis without coma, for a patient with Type 2 diabetes with ketoacidosis. This advice highlights the unfortunate shortcomings of the ICD-10 code set.
“Type 2 diabetes should be an E11 code, but ketoacidosis rarely occurs in Type 2 diabetes,” says Ericson, noting that Medlineplus has a helpful reference for Type 2 diabetes with ketoacidosis. “So we need to use an “Other specified diabetes” E13 code.”
Coding Clinic for ICD-9-CM states that this issue will go to before the ICD-10 Coordination and Maintenance Committee for reclassification in order that patients with ketoacidosis can be properly identified.