2022

  1. ICD-10-CM Codes
    2. ›
  2. L00-L99 Diseases of the skin and subcutaneous tissue
    3. ›
  3. L00-L08 Infections of the skin and subcutaneous tissue
    4. ›
  4. L04- Acute lymphadenitis
    5. ›
  5. 2022 ICD-10-CM Diagnosis Code L04.0

2022 ICD-10-CM Diagnosis Code L04.0

Acute lymphadenitis of face, head and neck

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • L04.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM L04.0 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of L04.0 - other international versions of ICD-10 L04.0 may differ.
The following code(s) above L04.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to L04.0:
  • L00-L99
    2022 ICD-10-CM Range L00-L99

    Diseases of the skin and subcutaneous tissue

    Type 2 Excludes
    • 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)
    • lipomelanotic reticulosis (I89.8)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • viral warts (B07.-)
    Diseases of the skin and subcutaneous tissue
  • L00-L08
    2022 ICD-10-CM Range L00-L08

    Infections of the skin and subcutaneous tissue

    Type 2 Excludes
    • hordeolum (H00.0)
    • infective dermatitis (L30.3)
    • local infections of skin classified in Chapter 1
    • lupus panniculitis (L93.2)
    • panniculitis NOS (M79.3)
    • panniculitis of neck and back (M54.0-)
    • Perlèche NOS (K13.0)
    • Perlèche due to candidiasis (B37.0)
    • Perlèche due to riboflavin deficiency (E53.0)
    • pyogenic granuloma (L98.0)
    • relapsing panniculitis [Weber-Christian] (M35.6)
    • viral warts (B07.-)
    • zoster (B02.-)
    Use Additional
    • code (B95-B97) to identify infectious agent.
    Infections of the skin and subcutaneous tissue
  • L04
    ICD-10-CM Diagnosis Code L04

    Acute lymphadenitis

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Includes
    • abscess (acute) of lymph nodes, except mesenteric
    • acute lymphadenitis, except mesenteric
    Type 1 Excludes
    • chronic or subacute lymphadenitis, except mesenteric (I88.1)
    • enlarged lymph nodes (R59.-)
    • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
    • lymphadenitis NOS (I88.9)
    • nonspecific mesenteric lymphadenitis (I88.0)
    Acute lymphadenitis
Approximate Synonyms
  • Acute lymphadenitis of face
  • Acute lymphadenitis of head
  • Acute lymphadenitis of neck
  • Face acute lymphadenitis
  • Head acute lymphadenitis
  • Neck acute lymphadenitis
ICD-10-CM L04.0 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 814 Reticuloendothelial and immunity disorders with mcc
  • 815 Reticuloendothelial and immunity disorders with cc
  • 816 Reticuloendothelial and immunity disorders without cc/mcc

Convert L04.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to L04.0:
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
    ICD-10-CM Diagnosis Code L02.91

    Cutaneous abscess, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    • cervical (meaning neck) L02.11
      ICD-10-CM Diagnosis Code L02.11

      Cutaneous abscess of neck

        2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
      • lymph gland or node L04.0
    • neck (region) L02.11
      ICD-10-CM Diagnosis Code L02.11

      Cutaneous abscess of neck

        2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
      • lymph gland or node L04.0
  • Adenitis - see also Lymphadenitis
    • cervical I88.9
      ICD-10-CM Diagnosis Code I88.9

      Nonspecific lymphadenitis, unspecified

        2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
      Applicable To
      • Lymphadenitis NOS
      • acute L04.0
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    • cervical gland L04.0 (lymph)
  • Lymphadenitis I88.9
    ICD-10-CM Diagnosis Code I88.9

    Nonspecific lymphadenitis, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Applicable To
    • Lymphadenitis NOS
    • acute L04.9
      ICD-10-CM Diagnosis Code L04.9

      Acute lymphadenitis, unspecified

        2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
      • face L04.0
      • head L04.0
      • neck L04.0

ICD-10-CM Codes Adjacent To L04.0
L03.81 Cellulitis of other sites
L03.811 Cellulitis of head [any part, except face]
L03.818 Cellulitis of other sites
L03.89 Acute lymphangitis of other sites
L03.891 Acute lymphangitis of head [any part, except face]
L03.898 Acute lymphangitis of other sites
L03.9 Cellulitis and acute lymphangitis, unspecified
L03.90 Cellulitis, unspecified
L03.91 Acute lymphangitis, unspecified
L04 Acute lymphadenitis
L04.0 Acute lymphadenitis of face, head and neck
L04.1 Acute lymphadenitis of trunk
L04.2 Acute lymphadenitis of upper limb
L04.3 Acute lymphadenitis of lower limb
L04.8 Acute lymphadenitis of other sites
L04.9 Acute lymphadenitis, unspecified
L05 Pilonidal cyst and sinus
L05.0 Pilonidal cyst and sinus with abscess
L05.01 Pilonidal cyst with abscess
L05.02 Pilonidal sinus with abscess
L05.9 Pilonidal cyst and sinus without abscess

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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