2023

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  5. 2023 ICD-10-CM Diagnosis Code A18.2

2023 ICD-10-CM Diagnosis Code A18.2

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Tuberculous peripheral lymphadenopathy

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • A18.2 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 A18.2 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of A18.2 - other international versions of ICD-10 A18.2 may differ.
Applicable To
  • Tuberculous adenitis
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (A18.2) and the excluded code together.
  • tuberculosis of bronchial and mediastinal lymph nodes (
    ICD-10-CM Diagnosis Code A15.4

    Tuberculosis of intrathoracic lymph nodes

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Tuberculosis of hilar lymph nodes
    • Tuberculosis of mediastinal lymph nodes
    • Tuberculosis of tracheobronchial lymph nodes
    Type 1 Excludes
    • tuberculosis specified as primary (A15.7)
    A15.4
    )
  • tuberculosis of mesenteric and retroperitoneal lymph nodes (
    ICD-10-CM Diagnosis Code A18.39

    Retroperitoneal tuberculosis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Tuberculosis of mesenteric glands
    • Tuberculosis of retroperitoneal (lymph glands)
    A18.39
    )
  • tuberculous tracheobronchial adenopathy (
    ICD-10-CM Diagnosis Code A15.4

    Tuberculosis of intrathoracic lymph nodes

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Tuberculosis of hilar lymph nodes
    • Tuberculosis of mediastinal lymph nodes
    • Tuberculosis of tracheobronchial lymph nodes
    Type 1 Excludes
    • tuberculosis specified as primary (A15.7)
    A15.4
    )
The following code(s) above A18.2 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 A18.2:
  • A00-B99
    2023 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A15-A19
    2023 ICD-10-CM Range A15-A19

    Tuberculosis

    Includes
    • infections due to Mycobacterium tuberculosis and Mycobacterium bovis
    Type 1 Excludes
    • congenital tuberculosis (P37.0)
    • nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
    • pneumoconiosis associated with tuberculosis, any type in A15 (J65)
    • positive PPD (R76.11)
    • positive tuberculin skin test without active tuberculosis (R76.11)
    • sequelae of tuberculosis (B90.-)
    • silicotuberculosis (J65)
    Tuberculosis
Approximate Synonyms
  • Tuberculosis (tb) adenitis
  • Tuberculous adenitis
Clinical Information
  • Infection of the lymph nodes by tuberculosis. Tuberculous infection of the cervical lymph nodes is scrofula.
ICD-10-CM A18.2 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 814 Reticuloendothelial and immunity disorders with mcc
  • 815 Reticuloendothelial and immunity disorders with cc
  • 816 Reticuloendothelial and immunity disorders without cc/mcc
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert A18.2 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

Diagnosis Index entries containing back-references to A18.2:
  • 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 2023 Billable/Specific Code
    • scrofulous A18.2 (tuberculous)
  • Adenitis - see also Lymphadenitis
    • scrofulous A18.2 (tuberculous)
    • strumous, tuberculous A18.2
  • Bubo I88.8
    ICD-10-CM Diagnosis Code I88.8

    Other nonspecific lymphadenitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • scrofulous A18.2 (tuberculous)
  • Caseation lymphatic gland A18.2 (tuberculous)
  • Disease, diseased - see also Syndrome
    • scrofulous A18.2 (tuberculous)
  • Lymphangitis I89.1
    ICD-10-CM Diagnosis Code I89.1

    Lymphangitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Chronic lymphangitis
    • Lymphangitis NOS
    • Subacute lymphangitis
    Type 1 Excludes
    • acute lymphangitis (L03.-)
    • strumous, tuberculous A18.2
  • Scrofula, scrofulosis A18.2 (tuberculosis of cervical lymph glands)
  • Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) A15.9
    ICD-10-CM Diagnosis Code A15.9

    Respiratory tuberculosis unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • abscess (respiratory) A15.9
      ICD-10-CM Diagnosis Code A15.9

      Respiratory tuberculosis unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      • scrofulous A18.2
    • lymph gland or node (peripheral) A18.2
      • cervical A18.2
    • axilla, axillary A18.2 (gland)
    • cervical A18.2 (lymph gland or node)
    • glandular, general A18.2
    • infraclavicular gland A18.2
    • inguinal gland A18.2
    • inguinalis A18.2
    • neck gland A18.2
    • scrofulous A18.2
    • supraclavicular gland A18.2
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
    • scrofulous A18.2 (tuberculous)
    • strumous A18.2 (tuberculous)

ICD-10-CM Codes Adjacent To A18.2
A18.1 Tuberculosis of genitourinary system
A18.10 …… unspecified
A18.11 Tuberculosis of kidney and ureter
A18.12 Tuberculosis of bladder
A18.13 Tuberculosis of other urinary organs
A18.14 Tuberculosis of prostate
A18.15 Tuberculosis of other male genital organs
A18.16 Tuberculosis of cervix
A18.17 Tuberculous female pelvic inflammatory disease
A18.18 Tuberculosis of other female genital organs
A18.2 Tuberculous peripheral lymphadenopathy
A18.3 Tuberculosis of intestines, peritoneum and mesenteric glands
A18.31 Tuberculous peritonitis
A18.32 Tuberculous enteritis
A18.39 Retroperitoneal tuberculosis
A18.4 Tuberculosis of skin and subcutaneous tissue
A18.5 Tuberculosis of eye
A18.50 …… unspecified
A18.51 Tuberculous episcleritis
A18.52 Tuberculous keratitis
A18.53 Tuberculous chorioretinitis

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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