Chapter 9: Diseases of the Circulatory System (I00–I99) Flashcards
(33 cards)
Does ICD-10 assume a link between hypertension and heart/kidney disease?
Yes — if the term “with” is used in the Index, a link is assumed. You don’t need the provider to say they’re related unless the record says they are unrelated.
If a patient has hypertension and heart failure, what code category should you use?
Use I11 (hypertensive heart disease). Add a code from I50 to describe the type of heart failure.
What if the doctor says the heart condition is not related to hypertension?
Then code them separately.
A patient has both hypertension and CKD. What codes should you assign?
A code from I12 (hypertensive CKD) + a code from N18 for the CKD stage.
What if the patient has acute kidney failure too?
Code that too, in addition to the I12 and N18 codes.
If a patient has hypertension + heart disease + CKD, what do you code?
Use a code from I13, then add codes from I50 (if heart failure) and N18 (for CKD stage).
True or False: You should use I11 or I12 along with I13.
False — never use I11 or I12 with I13.
If a patient has hypertensive retinopathy, what should you code?
Use H35.0 (retinopathy) + a code from I10–I15 for the hypertension.
A patient has a stroke and hypertension. What’s the code sequence?
Code the stroke first (I60–I69), then the hypertension.
What is secondary hypertension?
High blood pressure caused by another condition. Code the underlying condition first, then code I15 for the hypertension.
A patient has gestational hypertension. What code should you use?
Use O13.-
If it’s pre-eclampsia, use O14.-
If a patient’s high blood pressure is controlled with meds, how should you code it?
Still use codes from I10–I15 (treat it like regular hypertension).
What does “uncontrolled hypertension” mean in coding?
Either not treated at all, or not responding to treatment. Use I10–I15 just like regular hypertension.
What is a hypertensive crisis?
A serious event like a hypertensive emergency or urgency. Use code I16, and also code any underlying hypertension (I10–I15).
What code is used for pulmonary hypertension?
Use I27
If pulmonary hypertension is secondary to another condition, what else do you code?
Code the underlying condition and any drug/toxin that caused
What is resistant hypertension?
High blood pressure that doesn’t improve with meds. Use I1A.0 as an extra code; the main hypertension code (I10–I15) goes first.
What codes are used when a patient has both atherosclerosis and angina?
Use combo codes:
→ I25.11 = for native arteries
→ I25.7 = for bypass grafts or transplants
If the patient is admitted for an acute MI (heart attack), which code comes first?
The AMI code comes first.
If a patient has a stroke during or after a surgery, what must be true to use intra/postprocedural codes?
The documentation must clearly say the procedure caused the stroke.
What if a patient has a current stroke and still has symptoms from a past one?
Code both: the current stroke (I60–I67) + the residuals (I69).
When do you use I69 codes (stroke aftereffects)?
When a patient has long-term effects from a past stroke.
If there are no deficits after a past stroke or TIA, what code should you use?
Use Z86.73 (history of TIA/stroke without symptoms)
What codes are used for a STEMI?
I21.0–I21.3, based on location.
