2021 ICD-10-CM Diagnosis Code H20.03

Secondary infectious iridocyclitis

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • H20.03 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM H20.03 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of H20.03 - other international versions of ICD-10 H20.03 may differ.
The following code(s) above H20.03 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 H20.03:
  • H00-H59
    2021 ICD-10-CM Range H00-H59

    Diseases of the eye and adnexa

    Note
    • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
    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)
    • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury (trauma) of eye and orbit (S05.-)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
    Diseases of the eye and adnexa
  • H20.0
    ICD-10-CM Diagnosis Code H20.0

    Acute and subacute iridocyclitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Acute anterior uveitis
    • Acute cyclitis
    • Acute iritis
    • Subacute anterior uveitis
    • Subacute cyclitis
    • Subacute iritis
    Type 1 Excludes
    • iridocyclitis, iritis, uveitis (due to) (in) diabetes mellitus (E08-E13 with .39)
    • iridocyclitis, iritis, uveitis (due to) (in) diphtheria (A36.89)
    • iridocyclitis, iritis, uveitis (due to) (in) gonococcal (A54.32)
    • iridocyclitis, iritis, uveitis (due to) (in) herpes (simplex) (B00.51)
    • iridocyclitis, iritis, uveitis (due to) (in) herpes zoster (B02.32)
    • iridocyclitis, iritis, uveitis (due to) (in) late congenital syphilis (A50.39)
    • iridocyclitis, iritis, uveitis (due to) (in) late syphilis (A52.71)
    • iridocyclitis, iritis, uveitis (due to) (in) sarcoidosis (D86.83)
    • iridocyclitis, iritis, uveitis (due to) (in) syphilis (A51.43)
    • iridocyclitis, iritis, uveitis (due to) (in) toxoplasmosis (B58.09)
    • iridocyclitis, iritis, uveitis (due to) (in) tuberculosis (A18.54)
    Acute and subacute iridocyclitis
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

Diagnosis Index entries containing back-references to H20.03:
  • Iridocyclitis H20.9
    ICD-10-CM Diagnosis Code H20.9

    Unspecified iridocyclitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Uveitis NOS
    • acute H20.0-
      ICD-10-CM Diagnosis Code H20.0-

      Acute and subacute iridocyclitis

        2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
      Applicable To
      • Acute anterior uveitis
      • Acute cyclitis
      • Acute iritis
      • Subacute anterior uveitis
      • Subacute cyclitis
      • Subacute iritis
      Type 1 Excludes
      • iridocyclitis, iritis, uveitis (due to) (in) diabetes mellitus (E08-E13 with .39)
      • iridocyclitis, iritis, uveitis (due to) (in) diphtheria (A36.89)
      • iridocyclitis, iritis, uveitis (due to) (in) gonococcal (A54.32)
      • iridocyclitis, iritis, uveitis (due to) (in) herpes (simplex) (B00.51)
      • iridocyclitis, iritis, uveitis (due to) (in) herpes zoster (B02.32)
      • iridocyclitis, iritis, uveitis (due to) (in) late congenital syphilis (A50.39)
      • iridocyclitis, iritis, uveitis (due to) (in) late syphilis (A52.71)
      • iridocyclitis, iritis, uveitis (due to) (in) sarcoidosis (D86.83)
      • iridocyclitis, iritis, uveitis (due to) (in) syphilis (A51.43)
      • iridocyclitis, iritis, uveitis (due to) (in) toxoplasmosis (B58.09)
      • iridocyclitis, iritis, uveitis (due to) (in) tuberculosis (A18.54)
      • secondary (noninfectious) H20.04-
        ICD-10-CM Diagnosis Code H20.04-

        Secondary noninfectious iridocyclitis

          2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
        • infectious H20.03-

ICD-10-CM Codes Adjacent To H20.03
H20.01 Primary iridocyclitis
H20.011 …… right eye
H20.012 …… left eye
H20.013 …… bilateral
H20.019 …… unspecified eye
H20.02 Recurrent acute iridocyclitis
H20.021 …… right eye
H20.022 …… left eye
H20.023 …… bilateral
H20.029 …… unspecified eye
H20.03 Secondary infectious iridocyclitis
H20.031 …… right eye
H20.032 …… left eye
H20.033 …… bilateral
H20.039 …… unspecified eye
H20.04 Secondary noninfectious iridocyclitis
H20.041 …… right eye
H20.042 …… left eye
H20.043 …… bilateral
H20.049 …… unspecified eye
H20.05 Hypopyon

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