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ICD-10-CM Codes
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L00-L99
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L00-L08
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L04-
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2023 ICD-10-CM Diagnosis Code L04.9
2023 ICD-10-CM Diagnosis Code L04.9
Acute lymphadenitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- L04.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM L04.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of L04.9 - other international versions of ICD-10 L04.9 may differ.
The following code(s) above
L04.9 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
L04.9:
- L00-L99
2023 ICD-10-CM Range L00-L99
Diseases of the skin and subcutaneous tissueType 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.-)
- L00-L08
2023 ICD-10-CM Range L00-L08
Infections of the skin and subcutaneous tissueType 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.
- L04
ICD-10-CM Diagnosis Code L04
Acute lymphadenitis
2016 2017 2018 2019 2020 2021 2022 2023 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
- Lymphadenitis, acute (infection of lymph nodes)
- Suppurative lymphadenitis
- Suppurative lymphadenopathy
ICD-10-CM L04.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 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 L04.9 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
- 2023 (effective 10/1/2022): No change
- Adenitis - see also Lymphadenitis
- acute, unspecified site L04.9
- gangrenous L04.9
- Lymphadenitis I88.9
ICD-10-CM Diagnosis Code I88.9
Nonspecific lymphadenitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To L04.9
L03.898 Acute lymphangitis of other sites
L03.9 Cellulitis and acute lymphangitis, unspecified
L03.90 Cellulitis, unspecified
L03.91 Acute lymphangitis, unspecified
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
L05.91 Pilonidal cyst without abscess
L05.92 Pilonidal sinus without abscess
L08 Other local infections of skin and subcutaneous tissue
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
