2025 ICD-10-CM Diagnosis Code H31.8

Other specified disorders of choroid

ICD-10-CM Code:
H31.8
ICD-10 Code for:
Other specified disorders of choroid
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

H31.8 is a billable diagnosis code used to specify a medical diagnosis of other specified disorders of choroid. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.

Code Classification

  • Diseases of the eye and adnexa
    H00–H59
    • Disorders of choroid and retina
      H30-H36
      • Other disorders of choroid
        H31

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • Acquired hypopigmentation of choroid
  • Bilateral choroidal folds of eyes
  • Bilateral neovascularization of choroid of eye
  • Central serous choroidopathy of bilateral eyes
  • Central serous choroidopathy of left eye
  • Central serous choroidopathy of right eye
  • Chorioretinal vascular disorder
  • Choroid tubercles
  • Choroidal fold
  • Choroidal fold of left eye
  • Choroidal fold of right eye
  • Choroidal infarct
  • Choroidal pigmentation
  • Diffuse chorioretinal lesion
  • Flat chorioretinal lesion
  • Focal chorioretinal lesion
  • Generalized disseminated choroiditis AND chorioretinitis
  • Generalized disseminated choroiditis AND chorioretinitis with acute necrosis
  • Hypertensive choroidopathy
  • Idiopathic choroidal fold of bilateral eyes
  • Idiopathic choroidal fold of left eye
  • Idiopathic choroidal fold of right eye
  • Idiopathic choroidal neovascular membrane
  • Idiopathic fold of choroid of eye
  • Idiopathic polypoidal choroidal vasculopathy
  • Injury of choroid
  • Microcephalus, lymphedema, chorioretinopathy syndrome
  • Multiple raised chorioretinal lesions
  • Neovascularization of choroid of left eye
  • Neovascularization of choroid of right eye
  • Neovascularization of choroid of right eye
  • Neovascularization of choroid of right eye
  • Occult neovascularization of macula
  • Pachychoroid neovasculopathy
  • Polypoidal choroidal vasculopathy
  • Polypoidal neovascularization of choroid of bilateral eyes
  • Polypoidal neovascularization of choroid of eye
  • Polypoidal neovascularization of choroid of eye
  • Polypoidal neovascularization of choroid of eye
  • Polypoidal neovascularization of choroid of left eye
  • Polypoidal neovascularization of choroid of right eye
  • Punched out chorioretinal lesion
  • Solitary raised chorioretinal lesion
  • Subfoveal choroidal neovascular membrane
  • Tigroid fundus

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Retinal and vitreous conditions

CCSR Code: EYE005

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Polypoidal Choroidal Vasculopathy

    a choroid neovascularization characterized by serosanguineous retinal pigment epithelial detachment and leakage of serous exudate sometimes associated with aneurysmal polypoidal lesions.
  • Choroid

    the thin, highly vascular membrane covering most of the posterior of the eye between the retina and sclera.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert H31.8 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Disorders of choroid NEC

ICD-9-CM: 363.8

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

Patient Education


Eye Diseases

Some eye problems are minor and don't last long. But some can lead to a permanent loss of vision.

Common eye problems include:

  • Refractive errors
  • Cataracts - clouded lenses
  • Optic nerve disorders, including glaucoma
  • Retinal disorders - problems with the nerve layer at the back of the eye
  • Macular degeneration - a disease that destroys sharp, central vision
  • Diabetic eye problems
  • Conjunctivitis - an infection also known as pink eye

Your best defense is to have regular checkups, because eye diseases do not always have symptoms. Early detection and treatment could prevent vision loss. See an eye care professional right away if you have a sudden change in vision, if everything looks dim, or if you see flashes of light. Other symptoms that need quick attention are pain, double vision, fluid coming from the eye, and inflammation.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.