DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I88 Nonspecific lymphadenitis

  • Header · not billable

I88 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I80-I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)
  3. I88 Nonspecific lymphadenitis
Billable codes
4
Subdivisions
4
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
33

Codes in I88

  1. I88.0
    Nonspecific mesenteric lymphadenitis
    Billable
    Inclusion terms 1

    Inclusion terms

    • Mesenteric lymphadenitis (acute)(chronic)
  2. I88.1
    Chronic lymphadenitis, except mesenteric
    Billable
    Inclusion terms 2

    Inclusion terms

    • Adenitis
    • Lymphadenitis
  3. I88.8
    Other nonspecific lymphadenitis
    Billable
  4. I88.9
    Nonspecific lymphadenitis, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Lymphadenitis NOS

Sources of each column.

Instructions

At I88

Excludes1

  • acute lymphadenitis, except mesenteric (L04.-) L04
  • enlarged lymph nodes NOS (R59.-) R59
  • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20) B20

Notes that also apply

Chapter 9 instructions (Excludes2 10): printed on the chapter 9 page.

Index entries

  • Brennemann's syndrome → I88.0
  • Adenosclerosis → I88.8
  • Bubo → I88.8
  • Lymphadenitis → I88.9
  • Adenitismesenteric (acute) (chronic) (nonspecific) (subacute) → I88.0
  • Infection, infected, infective (opportunistic)mesenteric lymph nodes or glands NEC → I88.0
  • Lymphadenitismesenteric (acute) (chronic) (nonspecific) (subacute) → I88.0
  • Adenitischronic, unspecified site → I88.1
  • Adenitissubacute, unspecified site → I88.1
  • Lymphadenitischronic → I88.1
  • Lymphadenitissubacute, unspecified site → I88.1
  • Buboindolent (nonspecific) → I88.8
  • Buboinguinal (nonspecific) → I88.8
  • Granulomagland (lymph) → I88.8
  • Lymphadenitisregional, nonbacterial → I88.8
  • Adenitisaxillary → I88.9
  • Adenitiscervical → I88.9
  • Adenitisgroin → I88.9
  • Adenitisinguinal → I88.9
  • Adenitislymph gland or node, except mesenteric → I88.9
  • Lymphadenitisany site, except mesenteric → I88.9
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)lymph, lymphatic, gland or node (acute)mesentery → I88.0
  • Infection, infected, infective (opportunistic)lymph glandmesenteric → I88.0
  • Lymphadenitischronicmesenteric → I88.0
  • Adenitisaxillarychronic or subacute → I88.1
  • Adenitiscervicalchronic or subacute → I88.1
  • Adenitisgroinchronic or subacute → I88.1
  • Adenitisinguinalchronic or subacute → I88.1
  • Adenitislymph gland or node, except mesentericchronic or subacute → I88.1
  • Lymphadenitisany site, except mesentericchronic → I88.1
  • Lymphadenitisany site, except mesentericsubacute → I88.1
  • Buboinguinal (nonspecific)infective → I88.8
  • Infiltrate, infiltrationlymphaticgland → I88.9

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