(2) The physician should specify in the diagnosis that the condition is diabetic or
due to diabetes; otherwise, it is presumed not to be caused by diabetes.
NOTE: An exception is diabetic gangrene or diabetes with gangrene leads the coder to
the code denoting diabetes as the underlying cause of the gangrene, 25.7 [785.4].
d. Uncontrolled diabetes. Diabetes described as brittle or uncontrolled is to be
interpreted as diabetes mellitus, complicated. Brittle diabetes mellitus is difficult to
control because of rapid fluctuation in the blood sugar. Brittle diabetes mellitus may
occur in either the juvenile or the adult-onset type.
ICD-9-CM CODE EXTENDERS
Add these codes to the indicated categories in ICD-9-CM, Volume 1. These codes are
to be used with records having a date of disposition on or after 1 January 1989.
489-- Toxic shock syndrome
489-- 9 Other specified bacterial diseases, excluding toxic shock syndrome
7-- Viral hepatitis A with hepatic coma, lab test confirmed
7-- 1 Viral hepatitis A with hepatic coma, lab test not reported or negative
7-- 2 Viral hepatitis A with hepatic coma, lab test notperformed
71-- Viral hepatitis A without mention of hepatic coma, lab test confirmed
71-- 1 Viral hepatitis A without mention of hepatic coma, lab test not reported or
negative
71-- 2 Viral hepatitis A without mention of hepatic coma, lab test not performed
72-- Viral hepatitis B with hepatic coma, lab test confirmed
72-- 1 Viral hepatitis B with hepatic coma, lab test not reported or negative
72-- 2 Viral hepatitis B with hepatic coma, lab test not performed
73-- Viral hepatitis B without mention of hepatic coma, lab test confirmed
73-- 1 Viral hepatitis B without mention of hepatic coma, lab test not reported or
negative
73-- 2 Viral hepatitis B without mention of hepatic coma, lab test not performed
74-- 3
Non A, Non-B hepatitis with hepatic coma
74-- 9
Other specified viral hepatitis, excluding Non-A, Non-B hepatitis, with
hepatic coma
75-- 3
Non A, Non-B hepatitis without mention of hepatic coma
75-- 9
Other specified viral hepatitis, excluding Non-A, Non-B hepatitis, without
mention of hepatic coma
888--
Lyme disease
888-- 9
Other specified arthropod-borne diseases, excluding Lyme's disease
MD0753
A-53