I88

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Nonspecific lymphadenitis

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • acute lymphadenitis, except mesenteric (L04.-)
  • enlarged lymph nodes NOS (R59.-)
  • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)
I88Nonspecific lymphadenitisNot billable
I88.0Nonspecific mesenteric lymphadenitisBillable
I88.1Chronic lymphadenitis, except mesentericBillable
I88.8Other nonspecific lymphadenitisBillable
I88.9Nonspecific lymphadenitis, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I88:

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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