ICD-10-CM code · FY2027

I88.0 Nonspecific mesenteric lymphadenitis

BillableValid for claims as a specific diagnosis code

About I88.0

Code
I88.0
Billable
Yes
Short description
Nonspecific mesenteric lymphadenitis
Category
I88 Nonspecific lymphadenitis
Block
I80-I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
Chapter
9 Diseases of the circulatory system
Code set
FY2027, October 1, 2026 to September 30, 2027
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Coding notes for I88.0

Applicable to Other names for conditions reported with this code.

  • Mesenteric lymphadenitis (acute)(chronic)

Also applies, from I88 Nonspecific lymphadenitis

Excludes1 Not coded here: never report these together with this code (use the code given instead).

  • acute lymphadenitis, except mesenteric (L04.-)
  • enlarged lymph nodes NOS (R59.-)
  • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
Chapter 9 notes (apply to every code in it)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • 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.-)

Related codes in I88

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ICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.