ICD10BillableValid for clinical use
ICD-10 Code I87.312: Chronic venous hypertension (idiopathic) with ulcer of left lower extremity
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes idiopathic chronic venous hypertension. The most accurate code depends on whether ulcer, inflammation, combined ulcer and inflammation, or another complication is documented, and which lower extremity is affected.
When is it used?
- May be used when a clinician documents chronic venous hypertension (idiopathic) with ulcer of left lower extremity in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
đź©şClinical context
When commonly used
- Vascular, wound-care, primary-care, and rehabilitation workflows where chronic venous insufficiency or venous hypertension is documented with lower-extremity complications.
- Coding and utilization-review workflows where the record supports chronic venous hypertension and the final code changes based on complication pattern and laterality.
Common management context
- Evaluation often includes lower-extremity skin and edema assessment, ulcer or inflammation review, vascular follow-up context, compression-therapy planning, and wound-care coordination when present.
- Documentation usually becomes more specific when the chart identifies ulcer versus inflammation pattern, combined complications, and right, left, bilateral, or unspecified lower-extremity involvement.
- Specialist context already linked on this page includes Cardiologist, General Physician.
🔍Key distinctions
Important notes
- These ICD-10 codes are reserved for idiopathic chronic venous hypertension rather than acute venous thrombosis or other vascular disorders.
- Complication pattern and laterality both affect final code specificity inside this family.
- Venous hypertension with ulcer is coded separately from inflammation-only, combined ulcer-and-inflammation, without-complication, or other-complication patterns.
- Laterality matters here because right-sided, left-sided, bilateral, and unspecified lower-extremity chronic venous hypertension are coded separately.
- Documentation that describes chronic venous hypertension is coded differently from acute venous thrombosis, varicose-vein disorders, or other vascular disease contexts.
Related codes to consider
I87.311Chronic venous hypertension (idiopathic) with ulcer of right lower extremity
Related chronic-venous-hypertension ICD-10 code; documentation often becomes more specific when the chart identifies ulcer versus inflammation pattern, laterality, or another venous-disease context.
I87.313Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity
Related chronic-venous-hypertension ICD-10 code; documentation often becomes more specific when the chart identifies ulcer versus inflammation pattern, laterality, or another venous-disease context.
I87.319Chronic venous hypertension (idiopathic) with ulcer of unspecified lower extremity
Related chronic-venous-hypertension ICD-10 code; documentation often becomes more specific when the chart identifies ulcer versus inflammation pattern, laterality, or another venous-disease context.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
category
I87Other disorders of veins
category
I87.3Chronic venous hypertension (idiopathic)
category
I87.31Chronic venous hypertension (idiopathic) with ulcer
currentI87.31
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
CardiologistGeneral Physician
Related codes
Sibling codes
Coverage-related procedures and services
CPT 93970high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; COMPLETE BILATERAL STUDY
Source: CMS coverage guidance
CPT 93971high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; UNILATERAL OR LIMITED STUDY
Source: CMS coverage guidance
CPT 36482high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, BY TRANSCATHETER DELIVERY OF A CHEMICAL ADHESIVE (EG, CYANOACRYLATE) REMOTE FROM THE ACCESS SITE, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS; FIRST VEIN TREATED
Source: CMS coverage guidance
CPT 36483high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, BY TRANSCATHETER DELIVERY OF A CHEMICAL ADHESIVE (EG, CYANOACRYLATE) REMOTE FROM THE ACCESS SITE, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS; SUBSEQUENT VEIN(S) TREATED IN A SINGLE EXTREMITY, EACH THROUGH SEPARATE ACCESS SITES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 36478high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS, LASER; FIRST VEIN TREATED
Source: CMS coverage guidance
CPT 36479high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS, LASER; SUBSEQUENT VEIN(S) TREATED IN A SINGLE EXTREMITY, EACH THROUGH SEPARATE ACCESS SITES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
Coding guidelines
Common synonyms
Chronic venous hypertension (idiopathic) with ulcer of left lower extremityChronic venous hypertensionChronic venous hypertension idiopathic with ulcer of left lower extremity
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.