I80-I89

Non-Billable
ChapterI00–I99
Rankblock
Official Description

Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)
I80Phlebitis and thrombophlebitis
I81Portal vein thrombosis
I82Other venous embolism and thrombosis
I83Varicose veins of lower extremities
I85Esophageal varices
I86Varicose veins of other sites
I87Other disorders of veins
I88Nonspecific lymphadenitis
I89Other noninfective disorders of lymphatic vessels and lymph nodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I80-I89:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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