2022 ICD-10-CM Diagnosis Code H20

Iridocyclitis

    2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
  • H20 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2022 edition of ICD-10-CM H20 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of H20 - other international versions of ICD-10 H20 may differ.
The following code(s) above H20 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:
  • H00-H59
    2022 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
Clinical Information
  • Acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. Symptoms include radiating pain, photophobia, lacrimation, and interference with vision.
  • Acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil; symptoms include radiating pain, photophobia, lacrimation, and interference with vision.
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
ICD-10-CM Codes Adjacent To H20
H18.831 …… right eye
H18.832 …… left eye
H18.833 …… bilateral
H18.839 …… unspecified eye
H18.89 Other specified disorders of cornea
H18.891 …… right eye
H18.892 …… left eye
H18.893 …… bilateral
H18.899 …… unspecified eye
H18.9 Unspecified disorder of cornea
H20 Iridocyclitis
H20.0 Acute and subacute iridocyclitis
H20.00 Unspecified acute and subacute iridocyclitis
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

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