2020 ICD-10-CM Diagnosis Code A18.52

Tuberculous keratitis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A18.52 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM A18.52 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A18.52 - other international versions of ICD-10 A18.52 may differ.
Applicable To
  • Tuberculous interstitial keratitis
  • Tuberculous keratoconjunctivitis (interstitial) (phlyctenular)
The following code(s) above A18.52 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 A18.52:
  • A00-B99
    2020 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
    2020 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
  • A18.5
    ICD-10-CM Diagnosis Code A18.5

    Tuberculosis of eye

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • lupus vulgaris of eyelid (A18.4)
    Tuberculosis of eye
Approximate Synonyms
  • Bilateral tb keratitis
  • Keratitis due to tuberculosis
  • Keratitis of bilateral eyes caused by mycobacterium tuberculosis
  • Keratitis of left eye caused by mycobacterium tuberculosis
  • Keratitis of right eye caused by mycobacterium tuberculosis
  • Left tb keratitis
  • Right tb keratitis
  • Tuberculosis (tb) keratitis
ICD-10-CM A18.52 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 124 Other disorders of the eye with mcc
  • 125 Other disorders of the eye without 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 A18.52 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

Diagnosis Index entries containing back-references to A18.52:
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) H16.9
    ICD-10-CM Diagnosis Code H16.9

    Unspecified keratitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    • in (due to)
      • tuberculosis A18.52
    • interstitial (nonsyphilitic) H16.30-
      ICD-10-CM Diagnosis Code H16.30-

      Unspecified interstitial keratitis

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      • tuberculous A18.52
    • tuberculous A18.52
  • Keratoconjunctivitis H16.20-
    ICD-10-CM Diagnosis Code H16.20-

    Unspecified keratoconjunctivitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Superficial keratitis with conjunctivitis NOS
    • tuberculous A18.52 (phlyctenular)
  • Keratoscleritis, tuberculous A18.52
  • Phlyctenulosis (allergic) (keratoconjunctivitis) (nontuberculous) - see also Keratoconjunctivitis
    • tuberculous A18.52
  • Sclerokeratitis H16.8
    ICD-10-CM Diagnosis Code H16.8

    Other keratitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    • tuberculous A18.52
  • 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 Billable/Specific Code
    • cornea A18.52 (ulcer)
    • keratitis A18.52 (interstitial)
    • keratoconjunctivitis A18.52
    • phlyctenulosis A18.52 (keratoconjunctivitis)
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
    • cornea H16.00-
      ICD-10-CM Diagnosis Code H16.00-

      Unspecified corneal ulcer

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      • tuberculous A18.52 (phlyctenular)

ICD-10-CM Codes Adjacent To A18.52
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
A18.54 Tuberculous iridocyclitis
A18.59 Other tuberculosis of eye
A18.6 Tuberculosis of (inner) (middle) ear
A18.7 Tuberculosis of adrenal glands
A18.8 Tuberculosis of other specified organs
A18.81 Tuberculosis of thyroid gland
A18.82 Tuberculosis of other endocrine glands
A18.83 Tuberculosis of digestive tract organs, not elsewhere classified
A18.84 Tuberculosis of heart

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