For gestational diabetes (diabetes that occurs during pregnancy) women should be assigned a code under the 024.4 subheading and not any other codes under the 024 category.
The “unspecified” codes can be used when not enough information is known to give a more specific diagnosis; in that case, “unspecified” is technically more accurate than a more specific but as yet unconfirmed diagnosis. For more guidelines on using ICD-10 codes for diabetes mellitus, you can consult this document.
ICD-10-CM diabetes codes are combinations codes that include the type of diabetes mellitus, body system affected, and the complications affecting that body system.
The trimester character assignment is valuable data to capture since poorly controlled diabetes in pregnancy during the second and third trimesters can cause a medical risk to both the mother and newborn.
Category T85, Complications of other internal prosthetic devices, implants, and grafts, is used to report diabetic insulin pump complications.
The major difference in the coding of diabetes mellitus as compared to the current ICD-9 system will first be experienced in the classification of the disease. The current system only classifies the condition as either controlled or uncontrolled.
There will be no need for addition of another code in this case as there is a combination code for the type 2 diabetes. Type 2 diabetes mellitus with foot ulcer will be specified by the ICD-10 code E11.621. E10.69 is an ICD-10 code that will be used to specify type 1 diabetes mellitus with specified complication.
The ICD code E10 is used to code Hyperosmolar hyperglycemic state. Hyperosmolar hyperglycemic state (HHS) is a complication of diabetes mellitus (predominantly type 2) in which high blood sugars cause severe dehydration, increases in osmolarity (relative concentration of solute) and a high risk of complications, coma and death.
It is related to diabetic ketoacidosis ( DKA), another complication of diabetes more often (but not exclusively) encountered in people with type 1 diabetes; they are differentiated with measurement of ketone bodies, organic molecules that are the underlying driver for DKA but are usually not detectable in HHS.