2021 ICD-10-CM Diagnosis Code H35.9

Unspecified retinal disorder

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • H35.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM H35.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of H35.9 - other international versions of ICD-10 H35.9 may differ.
The following code(s) above H35.9 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 H35.9:
  • H00-H59
    2021 ICD-10-CM Range H00-H59

    Diseases of the eye and adnexa

    • 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
  • H35
    ICD-10-CM Diagnosis Code H35

    Other retinal disorders

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Other retinal disorders
Approximate Synonyms
  • Bilateral generalized retinal degeneration
  • Bilateral macular disorder
  • Bilateral retinal disorder
  • Bilateral retinopathy
  • Bilateral retinopathy (eye condition)
  • Disorder of macula of bilateral eyes
  • Disorder of macula of left eye
  • Disorder of macula of retina
  • Disorder of macula of right eye
  • Disorder of retina of bilateral eyes
  • Disorder of retina of left eye
  • Disorder of retina of right eye
  • Left generalized retinal degeneration
  • Left macular disorder
  • Left retinal disorder
  • Left retinopathy
  • Left retinopathy (eye condition)
  • Macular disease (eye condition)
  • Macular disorder
  • Retinal disorder
  • Retinal disorder (eye condition)
  • Retinopathy
  • Retinopathy as late effect of radiation
  • Retinopathy, late effect of radiation
  • Right generalized retinal degeneration
  • Right macular disorder
  • Right retinal disorder
  • Right retinopathy
  • Right retinopathy (eye condition)
Clinical Information
  • A disorder involving the retina.
  • An abnormal structure or function of the retina and its associated tissues.
  • Any disease or disorder of the retina.
  • Pathologic condition of the innermost of the three tunics of the eyeball or retina.
  • The retina is a layer of tissue in the back of your eye that senses light and sends images to your brain. In the center of this nerve tissue is the macula. It provides the sharp, central vision needed for reading, driving and seeing fine detail.retinal disorders affect this vital tissue. They can affect your vision, and some can be serious enough to cause blindness. Examples are
    • retinal detachment - a medical emergency, when the retina is pulled away from the back of the eye
    • macular pucker - scar tissue on the macula
    • macular hole - a small break in the macula that usually happens to people over 60
    • floaters - cobwebs or specks in your field of vision
    nih: national eye institute
ICD-10-CM H35.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 124 Other disorders of the eye with mcc
  • 125 Other disorders of the eye without mcc

Convert H35.9 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to H35.9:

ICD-10-CM Codes Adjacent To H35.9
H35.729 …… unspecified eye
H35.73 Hemorrhagic detachment of retinal pigment epithelium
H35.731 …… right eye
H35.732 …… left eye
H35.733 …… bilateral
H35.739 …… unspecified eye
H35.8 Other specified retinal disorders
H35.81 Retinal edema
H35.82 Retinal ischemia
H35.89 Other specified retinal disorders
H35.9 Unspecified retinal disorder
H36 Retinal disorders in diseases classified elsewhere
H40 Glaucoma
H40.0 Glaucoma suspect
H40.00 Preglaucoma, unspecified
H40.001 …… right eye
H40.002 …… left eye
H40.003 …… bilateral
H40.009 …… unspecified eye
H40.01 Open angle with borderline findings, low risk
H40.011 …… right eye

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