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Quizzes > Health & Medicine

Labile Hypertension ICD-10 Quiz for Circulatory Coding

Quick, free quiz to check your labile blood pressure ICD-10 coding. Instant results.

Editorial: Review CompletedCreated By: Selva KrishnanUpdated Aug 27, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art heart shape with ECG waveform and ICD-10 code blocks on sky blue background

This quiz helps you practice ICD-10 coding for labile hypertension with short, real-world cases. Work through scenarios to spot documentation cues, apply Chapter 9 rules, and get instant feedback. For extra practice, try the icd 10 practice test, review causes and encounters in the ICD-10-CM chapters 20-21 quiz, or refresh treatment basics with the antihypertensive drugs quiz.

Which ICD-10-CM code is used to classify labile hypertension?
I10
I15.0
I95.1
R03.0
Labile hypertension, characterized by fluctuating blood pressure readings without confirmed hypertension, is coded to R03.0 in ICD-10-CM. This code is used when elevated readings are observed but do not meet criteria for a hypertension diagnosis. It ensures that the transient nature of blood pressure variability is captured as a symptom.
Chapter IX of ICD-10-CM covers which body system?
Digestive system
Nervous system
Circulatory system
Respiratory system
ICD-10-CM Chapter IX (I00 - I99) is designated for diseases of the circulatory system. It includes codes for hypertension, heart diseases, and vascular disorders. Labile hypertension and other blood pressure - related conditions fall within this chapter.
What condition is represented by ICD-10-CM code I10?
Hypertensive heart disease
Essential (primary) hypertension
Hypertensive chronic kidney disease
Secondary hypertension
Code I10 in ICD-10-CM is used for essential (primary) hypertension, reflecting a diagnosis of high blood pressure without a specified secondary cause. It is the base code for most hypertension diagnoses in absence of organ involvement. Other hypertension types have separate categories such as heart disease or kidney disease.
Which ICD-10-CM category is used for secondary hypertension?
I15
I11
I12
I10
Secondary hypertension, which has an identifiable underlying cause such as renal or endocrine disorders, is coded under category I15 in ICD-10-CM. This distinguishes it from essential hypertension (I10). Category I15 includes specific subcategories for renovascular, primary, and other secondary hypertension.
What is the meaning of ICD-10-CM code I11?
Hypertensive chronic kidney disease
Secondary hypertension
Essential hypertension
Hypertensive heart disease
Code I11 in ICD-10-CM denotes hypertensive heart disease, which refers to damage or dysfunction of the heart directly attributable to hypertension. Subcategories further distinguish presence or absence of heart failure. This category does not cover kidney involvement.
Which ICD-10-CM category covers hypertensive chronic kidney disease?
I10
I11
I15
I12
Category I12 in ICD-10-CM is used for hypertensive chronic kidney disease, reflecting chronic kidney damage from hypertension. It requires an additional code to specify the stage of chronic kidney disease. This coding structure captures both hypertension and renal involvement in one category.
Which subcategory code indicates hypertensive heart disease with heart failure?
I10
I11.9
I11.0
I12.0
The subcategory I11.0 in ICD-10-CM denotes hypertensive heart disease with heart failure. The .0 specifies that heart failure is present. If heart failure is not specified, I11.9 would be used instead. This combination code simplifies sequencing when both conditions coexist.
Which ICD-10-CM code is assigned for orthostatic hypotension?
I10
I95.1
I15.0
R03.0
Orthostatic hypotension, a drop in blood pressure upon standing, is classified under I95.1 in ICD-10-CM. It is a separate entity from hypertension codes. This specific code ensures that the postural nature of the hypotension is captured accurately.
When both essential hypertension and hypertensive heart disease are diagnosed, which ICD-10-CM code should be assigned?
I15
I10
I11
I12
When essential hypertension coexists with hypertensive heart disease, only the combination code I11 should be assigned per ICD-10-CM guidelines. Coding just I10 and I11 separately is not permitted. This ensures accurate representation of heart involvement due to hypertension.
Which ICD-10-CM code represents hypertensive heart and chronic kidney disease without heart failure?
I13.11
I12.0
I13.10
I11.0
I13.10 is the combination code for hypertensive heart and chronic kidney disease without heart failure in ICD-10-CM. Subcategory 11 would indicate heart failure present. Using a single combination code streamlines coding when both conditions are documented.
Which ICD-10-CM code represents hypertensive heart and chronic kidney disease with heart failure?
I13.11
I13.10
I11.0
I12.0
The subcategory I13.11 denotes hypertensive heart and chronic kidney disease with heart failure in ICD-10-CM. The final digit '1' indicates the presence of heart failure. Coders should use this combination code rather than separate codes when both organ systems are involved.
A patient has hypertensive chronic kidney disease, stage 2. Which codes should be assigned?
N18.2 only
I10 and N18.2
I12.0 and N18.2
I12.9 and N18.2
For hypertensive chronic kidney disease stage 2, ICD-10-CM requires I12.0 (hypertensive chronic kidney disease) and a secondary code N18.2 to specify stage 2 CKD. The combination reflects both hypertension and CKD severity.
In a patient with labile hypertension and acute kidney injury, which diagnosis should be sequenced first?
R03.0
N17.9
N18.9
I10
Per ICD-10-CM sequencing rules, acute kidney injury (N17.9) should be listed before symptom codes like R03.0 (labile hypertension). The principal diagnosis is the condition chiefly responsible for the encounter, thus an acute condition like AKI takes precedence.
Which ICD-10-CM code is used for nephrogenic hypertension due to chronic kidney disease?
I15.0
I12.0
I10
I11.0
Nephrogenic (chronic kidney disease-related) hypertension is coded using I12.0 in ICD-10-CM. This code specifically captures hypertensive chronic kidney disease and requires an additional code to denote CKD stage.
Which code sequence is correct when labile hypertension is documented alongside orthostatic hypotension?
R03.0 then I95.1
I10 then I95.1
I95.1 then R03.0
R03.0 only
When both labile hypertension (R03.0) and orthostatic hypotension (I95.1) are documented, sequence symptoms in the order of treatment focus. Labile hypertension is typically the reason for monitoring, so R03.0 goes first followed by I95.1.
A patient with labile hypertension also has stage 3 chronic kidney disease. Which code should be listed as principal?
I10
I12.0
R03.0
N18.3
When both CKD and labile hypertension are present, the CKD (N18.3 for stage 3) should be sequenced first as the principal diagnosis in ICD-10-CM. Labile hypertension (R03.0) is a symptom code and comes secondary when kidney disease is the primary condition.
Which ICD-10-CM code indicates a hypertensive emergency?
I16.1
I10
I15.0
I16.0
Hypertensive emergency, characterized by severely elevated blood pressure with acute target organ damage, is coded as I16.1 in ICD-10-CM. I16.0 represents hypertensive urgency without organ damage. These codes distinguish levels of hypertension severity.
Malignant hypertension is no longer differentiated in ICD-10-CM and should be coded as which of the following?
I15.0
I10
I16.0
I11.0
ICD-10-CM eliminated the distinction between malignant and benign hypertension; all essential hypertension, including formerly labeled malignant, is coded as I10. Hypertensive emergencies have separate codes (I16). This simplifies coding practice.
A coder must report hypertensive heart disease with CKD stage 4 and heart failure. Which combination code applies?
I12.1
I13.11
I11.0
I13.10
I13.11 is the ICD-10-CM combination code for hypertensive heart and chronic kidney disease with heart failure, applicable across CKD stages, including stage 4. It captures all three conditions in one code.
Which ICD-10-CM code is used for postpartum gestational hypertension without proteinuria?
R03.0
O10.1
O11
O13
O13 in ICD-10-CM designates gestational hypertension without significant proteinuria, including postpartum cases. O10 and O11 require pre-existing or superimposed proteinuria conditions. Labile hypertension remains a symptom code.
Which ICD-10-CM code is used for secondary hypertension due to an endocrine disorder?
E34.9
I10
I15.1
I15.0
I15.1 in ICD-10-CM covers secondary hypertension due to endocrine disorders, such as Cushing's syndrome. I15.0 is for renovascular hypertension. This categorization helps identify specific underlying causes.
How many characters are standard in ICD-10-CM category codes for hypertension (e.g., I10)?
3
2
4
5
ICD-10-CM category codes consist of three characters (e.g., I10 for essential hypertension). A decimal point followed by one or two more characters may be used for greater specificity. Understanding character structure is critical for accurate coding.
In a pregnant patient with labile hypertension but no significant proteinuria, which ICD-10-CM code is appropriate?
O14.0
O11.0
O13.9
I10
O13.9 in ICD-10-CM specifies gestational hypertension without significant proteinuria, unspecified as to severity. It applies to pregnancy-induced labile blood pressure elevations without end-organ involvement. Pre-eclampsia codes (O14) require proteinuria.
Labile hypertension complicated by hypertensive encephalopathy should be coded to which ICD-10-CM code?
I16.1
I10
G93.5
I67.4
Hypertensive encephalopathy is coded under I67.4 in ICD-10-CM, capturing the brain dysfunction resulting from severely elevated blood pressure. Hypertension codes like I16.1 (hypertensive emergency) may apply concurrently but should not replace the encephalopathy code when documented.
A patient admitted for elective coronary bypass has documented labile hypertension. Which secondary diagnosis code is correct?
E78.5
Z95.1
I10
R03.0
When labile hypertension is documented but does not meet criteria for essential hypertension, it is coded as R03.0 even as a secondary diagnosis. I10 would imply a confirmed hypertension diagnosis. Z95.1 refers to presence of coronary bypass graft.
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Study Outcomes

  1. Identify ICD-10 Codes for Labile Hypertension -

    Pinpoint the correct icd 10 for labile hypertension and related circulatory system diagnoses by examining key code definitions and guidelines.

  2. Apply Chapter 9 ICD-10 Guidelines -

    Utilize chapter 9 icd 10 guidelines to determine when to assign codes under I00 - I99, ensuring adherence to standard coding protocols.

  3. Differentiate Hypertensive Disorders -

    Distinguish between labile hypertension icd 10 code assignments and other forms of hypertension, such as essential or secondary variants.

  4. Interpret Secondary Cause Coding -

    Analyze coding scenarios involving comorbidities, including history of cushing's disease icd 10, to select appropriate secondary diagnosis codes.

  5. Evaluate Quiz-Based Feedback -

    Assess your coding choices through interactive quiz results and explanations, reinforcing accuracy in real-world documentation.

  6. Master Circulatory System Coding -

    Gain confidence in coding diseases of the circulatory system under chapter 9, improving speed and precision in medical records.

Cheat Sheet

  1. Defining Labile Hypertension -

    Labile hypertension is characterized by transient spikes in blood pressure readings, often triggered by stress or activity, and not sustained like essential hypertension. Recognizing these episodic fluctuations helps coders accurately apply icd 10 for labile hypertension concepts versus chronic hypertension scenarios.

  2. Selecting the Right Code -

    Since labile hypertension lacks a unique ICD-10 code, coders generally assign I10 (Essential [primary] hypertension) and note "labile" in the medical record for clarity. Familiarity with icd 10 code labile hypertension guidelines ensures consistent reporting and aligns with payer requirements.

  3. Coding History of Cushing's Disease -

    When a patient has labile hypertension secondary to Cushing's, use E24.0 for active Cushing's syndrome or Z86.718 for history of cushing's disease icd 10 to capture past episodes in discharge coding. Proper sequencing - listing the endocrine condition first - reflects chapter 9 icd 10 guidelines and supports clinical context.

  4. Leveraging Chapter 9 Guidelines -

    The Chapter 9 ICD-10 guidelines (I00 - I99) emphasize documenting underlying causes and comorbidities to determine combination codes like I11 - I13 for hypertensive heart and renal disease. Reviewing the official ICD-10-CM coding guidelines from the CDC or CMS ensures you adhere to conventions, punctuation rules, and sequencing priorities.

  5. Mnemonic for Hypertensive Combinations -

    Recall "Heart, Kidney, Both" for I11 (heart), I12 (kidney), and I13 (both) to quickly identify the correct hypertensive combination code when documenting labile hypertension with organ involvement. This simple trick speeds up chart reviews and reinforces chapter 9 icd 10 guidelines in your daily workflow.

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