Chapter 4: Diabetes (E08–E13) Flashcards
(18 cards)
What three things do diabetes codes from E08–E13 always capture?
The type of diabetes, the affected body system, and any complications
True or False: You can use only one diabetes code per patient.
False — you may need multiple codes to show all complications
What determines which diabetes code comes first?
The main reason for the visit
Is age the only factor in deciding between Type 1 and Type 2?
No — don’t assume based on age alone.
What code is used for presymptomatic Type 1 diabetes?
E10.A-
If the patient is on insulin but type is not stated, what do you code?
E11 for Type 2 + Z79.4 for long-term insulin use
What code is used for long-term oral diabetes meds?
→ Z79.84
What code is used for long-term injectable non-insulin meds?
→ Z79.85
Can a patient have Z79.4, Z79.84, and Z79.85 at the same time?
Yes, if they are using all types of meds.
True or False: You should code Z79.4 even if the insulin is only temporary.
False — only use Z79.4 for long-term insulin therapy
Where do you find coding rules for diabetes during pregnancy?
Chapter 15 (Pregnancy guidelines)
How do you code an underdose due to pump malfunction?
→ 1) T85.6- = pump malfunction
→ 2) T38.3X6- = underdose
→ 3) Then the diabetes + complications
How do you code an overdose due to pump malfunction?
→ 1) T85.6-
→ 2) T38.3X1- = insulin poisoning
What are some causes of secondary diabetes?
Cystic fibrosis, pancreatic cancer, pancreas removal, or drugs
If secondary diabetes is due to medication, what else must you code?
Add any that apply:
Z79.4 (insulin)
Z79.84 (oral meds)
Z79.85 (injectable non-insulin)
What’s the rule for Z79.4 when insulin is temporary?
Don’t use Z79.4 — it’s only for long-term therapy
If diabetes is caused by pancreas removal, what is the sequence?
E13.- = secondary diabetes
E89.1 = post-surgical low insulin
Z90.41 = history of pancreas removal
How do you code diabetes from drug toxicity or poisoning?
Chapter 19 = poisoning/adverse effects
Chapter 20 = external cause codes
