Hypotension ICD-10-CM Codes | 2023

Explore ICD-10 codes for hypotension - an essential resource for accurate diagnosis and billing. Understand the codes used for low blood pressure conditions.

By Bernard Ramirez on Aug 8, 2025.

Fact Checked by RJ Gumban.

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What ICD-10 Codes are Used for Hypotension

Hypotension, or abnormally low blood pressure, may be caused by several underlying medical conditions. The ICD-10 coding system documents and classifies hypotension based on its etiology and severity using specific codes.

Here are the commonly used Hypotension ICD-10 codes, along with clinical descriptions for each code:

I95.9 - Hypotension, unspecified: This code is used when the cause of hypotension is unknown or not specified in the medical record.
I95.0 - Idiopathic hypotension: This code is used when a patient presents with low blood pressure of unknown cause, often termed "primary" or "idiopathic" hypotension.
I95.1 - Orthostatic hypotension: Orthostatic hypotension occurs when there is a significant drop in blood pressure upon standing. Commonly seen in conditions like postural orthostatic tachycardia syndrome (POTS) or autonomic dysfunction.
I95.8 - Other hypotension: This code is employed for cases of hypotension that don't fit into other specific categories and have a known cause or etiology.
R06.1 - Orthostatic hypotension: This code is used for documenting orthostatic hypotension when a more specific ICD-10 code is unavailable or required.
R55 - Syncope and collapse: Syncope, commonly known as fainting, can sometimes result from severe hypotension, and this code is used to classify such episodes.
E86.0 - Dehydration: Dehydration can lead to low blood pressure. This code is used when hypotension is primarily due to fluid loss.
E07.1 - Hypothyroidism (mild): Hypothyroidism, when mild, can cause various symptoms, including hypotension, and this code is used when the thyroid disorder is documented as the cause.
I10 - Essential (primary) hypertension: Hypotension can be a consequence of antihypertensive medication side effects or uncontrolled essential hypertension.
K76.8 - Other specified diseases of the liver: Liver diseases, such as cirrhosis, can lead to portal hypertension, which can result in hypotension. This code is used when liver disease is the underlying cause.

Accurate documentation and classification of hypotension based on its underlying cause is crucial for healthcare providers in diagnosing and treating patients with low blood pressure. ICD-10 codes play a significant role in achieving this goal. Proper coding ensures that healthcare professionals can provide appropriate care and receive adequate service reimbursement.

Which Hypotension ICD Codes are Billable

Multiple factors, including the healthcare environment, insurance policies, and healthcare provider documentation, often influence medical service billing. To help determine if commonly used ICD-10 codes for hypotension are billable, here is some general guidance:

I95.9 - Hypotension, unspecified: Yes.
I95.0 - Idiopathic hypotension: Yes.
I95.1 - Orthostatic hypotension: Yes.
I95.8 - Other hypotension: Yes.
R06.1 - Orthostatic hypotension: Yes.
R55 - Syncope and collapse: Yes.
E86.0 - Dehydration: Yes.
E07.1 - Hypothyroidism (mild): Yes.
I10 - Essential (primary) hypertension: Generally, this code is not used to treat hypotension, which is low blood pressure, as it is intended for hypertension, which is high blood pressure.
K76.8 - Other specified diseases of the liver: No, this code is not typically used for billing hypotension but rather for specifying liver-related conditions.

It's essential to consult with the healthcare provider's billing department and insurance policies for accurate coding and billing reimbursement. Clinical documentation supporting the use of codes is crucial for billing accuracy.

Clinical Information

Hypotension is defined as abnormally low blood pressure, typically with a systolic blood pressure (the top number) of less than 90 mm Hg or a diastolic blood pressure (the bottom number) of less than 60 mm Hg.
Common causes of hypotension include dehydration, blood loss, heart conditions, endocrine disorders, medications, and autonomic nervous system dysfunction.
Orthostatic hypotension is a specific form of low blood pressure that occurs when a person stands up from a sitting or lying position, leading to dizziness, lightheadedness, or fainting.
Hypotension can result in inadequate blood flow to vital organs, leading to dizziness, weakness, fatigue, and confusion.
Diagnosis typically involves measuring blood pressure, reviewing the patient's medical history, and conducting various tests to identify the underlying cause.
Treatment of hypotension depends on the cause and severity. It may involve addressing the underlying condition, increasing fluid intake, adjusting medications, or using compression stockings for orthostatic hypotension.
Severe hypotension can be a medical emergency, as it may lead to shock, organ dysfunction, or even death, requiring immediate medical intervention.
Hypotension can be a side effect of some medications, and healthcare providers should monitor and adjust drug regimens as needed.
Proper documentation and coding of the specific cause of hypotension using ICD-10 codes are essential for accurate diagnosis, treatment, and billing.
In some cases, patients may require ongoing monitoring and management to address chronic hypotension or underlying conditions contributing to low blood pressure.

Synonyms Include

Low blood pressure
Hypotensive condition
Hypotensive state
Low BP (Blood Pressure)
Hypotensive disorder
Low arterial pressure
Hypoarterial tension
Hypo BP
Hypotensive syndrome

Commonly asked questions

Use a Hypotension ICD code when documenting low blood pressure due to specific causes or conditions in medical records.

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Yes, specific hypotension diagnoses are billable when supported by clinical documentation and by insurance and billing policies.

Treatments for hypotension depend on the underlying cause and may include addressing dehydration, adjusting medications, managing underlying conditions, and increasing fluid and salt intake.

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