ICD10BillableValid for clinical use

ICD-10 Code I87.033: Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity

I87.033 is a billable ICD-10 diagnosis code used to classify Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. 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).

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).

When is it used?

  • May be used when a clinician documents postthrombotic syndrome with ulcer and inflammation of bilateral 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.

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
I87.0Postthrombotic syndrome
category
I87.03Postthrombotic syndrome with ulcer and inflammation
currentI87.03

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

Coverage-related procedures and services

Coding guidelines

Common synonyms

Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity

Frequently asked questions

Code details

CodeI87.033
SystemICD10
Display namePostthrombotic syndrome with ulcer and inflammation of bilateral lower extremity
ChapterDiseases of the circulatory system (I00-I99)
BlockDiseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.

ICD-10 Code I87.033 for Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity | HealthAssure