2020 ICD-10-CM Diagnosis Code H33.12

Parasitic cyst of retina

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • H33.12 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM H33.12 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of H33.12 - other international versions of ICD-10 H33.12 may differ.
The following code(s) above H33.12 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 H33.12:
  • H00-H59
    2020 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
  • H33
    ICD-10-CM Diagnosis Code H33

    Retinal detachments and breaks

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Retinal detachments and breaks
  • H33.1
    ICD-10-CM Diagnosis Code H33.1

    Retinoschisis and retinal cysts

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital retinoschisis (Q14.1)
    • microcystoid degeneration of retina (H35.42-)
    Retinoschisis and retinal cysts
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 H33.12:
  • Cyst (colloid) (mucous) (simple) (retention)
    • retina H33.19-
      ICD-10-CM Diagnosis Code H33.19-

      Other retinoschisis and retinal cysts

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      Applicable To
      • Pseudocyst of retina
      • parasitic H33.12-

ICD-10-CM Codes Adjacent To H33.12
H33.10 Unspecified retinoschisis
H33.101 …… right eye
H33.102 …… left eye
H33.103 …… bilateral
H33.109 …… unspecified eye
H33.11 Cyst of ora serrata
H33.111 …… right eye
H33.112 …… left eye
H33.113 …… bilateral
H33.119 …… unspecified eye
H33.12 Parasitic cyst of retina
H33.121 …… right eye
H33.122 …… left eye
H33.123 …… bilateral
H33.129 …… unspecified eye
H33.19 Other retinoschisis and retinal cysts
H33.191 …… right eye
H33.192 …… left eye
H33.193 …… bilateral
H33.199 …… unspecified eye
H33.2 Serous retinal detachment

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