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ICD-10 Code I88.0: Nonspecific mesenteric lymphadenitis

I88.0 is a billable ICD-10 diagnosis code used to classify Nonspecific mesenteric lymphadenitis 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).

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 nonspecific mesenteric lymphadenitis 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
I88Nonspecific lymphadenitis
currentI88

Official coding notes

Inclusion terms
  • Mesenteric lymphadenitis (acute)(chronic)

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

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
I88.0

Common synonyms

Nonspecific mesenteric lymphadenitis

Frequently asked questions

Code details

CodeI88.0
SystemICD10
Display nameNonspecific mesenteric lymphadenitis
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

Index terms

Matched terms
Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)AdenitisBrennemann's syndromeInfection, infected, infective(opportunistic)Infection, infected, infective(opportunistic)LymphadenitisLymphadenitis

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.