2020 ICD-10-CM Diagnosis Code H21.342

Primary cyst of pars plana, left eye

    2016 2017 2018 2019 2020 Billable/Specific Code
  • H21.342 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 H21.342 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of H21.342 - other international versions of ICD-10 H21.342 may differ.
The following code(s) above H21.342 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 H21.342:
  • 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
  • H21
    ICD-10-CM Diagnosis Code H21

    Other disorders of iris and ciliary body

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Other disorders of iris and ciliary body
  • H21.3
    ICD-10-CM Diagnosis Code H21.3

    Cyst of iris, ciliary body and anterior chamber

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Cyst of iris, ciliary body and anterior chamber
Approximate Synonyms
  • Left primary cyst of pars plana
  • Left primary cyst of pars plana (eye condition)
ICD-10-CM H21.342 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

Convert H21.342 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
ICD-10-CM Codes Adjacent To H21.342
H21.322 …… left eye
H21.323 …… bilateral
H21.329 …… unspecified eye
H21.33 Parasitic cyst of iris, ciliary body or anterior chamber
H21.331 …… right eye
H21.332 …… left eye
H21.333 …… bilateral
H21.339 …… unspecified eye
H21.34 Primary cyst of pars plana
H21.341 …… right eye
H21.342 …… left eye
H21.343 …… bilateral
H21.349 …… unspecified eye
H21.35 Exudative cyst of pars plana
H21.351 …… right eye
H21.352 …… left eye
H21.353 …… bilateral
H21.359 …… unspecified eye
H21.4 Pupillary membranes
H21.40 …… unspecified eye
H21.41 …… right eye

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