Billable / Specific Code
ICD-10-CM I87.309 is the diagnosis code for Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity. This code falls under the section "Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where I87.309 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I87.309 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I87.309 is the ICD-10-CM diagnosis code for "Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I87.309 is I87.30 ("Chronic venous hypertension (idiopathic) without complications"). I87.309 provides a more specific classification within this category.
I87.309 is located in Section I80-I89 — "Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified" within Chapter 9 of the ICD-10-CM Tabular List.
Use I87.309 when the patients documented diagnosis matches "Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity is I87.309.
Yes, I87.309 can be used as a primary diagnosis code since it is billable and specific.
I87.309 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I87.309 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.