2027 ICD-10-CM Diagnosis Code H31.103Choroidal degeneration, unspecified, bilateral

ICD-10-CM Codes›H00–H59›H30-H36›H31

ICD-10-CM H31.103
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H31.103 is a billable ICD-10-CM diagnosis code for choroidal degeneration, unspecified, bilateral. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. Coders also document this condition as bilateral choroid degeneration. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Retinal and vitreous conditions.

Code Identity

ICD-10-CM Code
H31.103
Billable Status
Yes — Valid for Submission
Code Describes
Choroidal degeneration, unspecified, bilateral
Short Description
Choroidal degeneration, unspecified, bilateral
Same as the full description in the CMS dataset.
Parent Code
H31.10
Unspecified choroidal degeneration

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH30-H36Disorders of choroid and retina
CategoryH31Other disorders of choroid
This CodeH31.103Choroidal degeneration, unspecified, bilateral

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral choroid degeneration

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H31.103: its own notes plus those printed at H31.1 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From H31.1 Choroidal degeneration applies to 12 codes
  • angioid streaks of macula (H35.33)
From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • 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)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name H31.103, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming H31.103: they are not reported together with it, unless the two conditions are unrelated.

  • H35.5 Hereditary retinal dystrophy
    dystrophies primarily involving Bruch's membrane (H31.1-) names H31.1-, which includes this code

Use Additional Code 1

These codes say to use an additional code from the note, and H31.103 is one of the codes named.

  • H44.2A Degenerative myopia with choroidal neovascularization
    code for any associated choroid disorders (H31.-) names H31.-, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EYE005
Retinal and vitreous conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Eye Diseases

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The full article covers:

  • What diseases can affect the eye?
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Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H31.103 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
362.77 Bruch membrane dystrophy
Approximate The match is approximate rather than exact.
ICD-9-CM
363.40 Choroidal degen NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H31.103Overview

What is the ICD-10 code for choroidal degeneration, unspecified, bilateral?

The ICD-10-CM code for choroidal degeneration, unspecified, bilateral is H31.103 (sometimes written as H31103). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H31.103 (Unspecified choroidal degeneration) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report choroidal degeneration, unspecified, bilateral on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H31.103 group to?

When choroidal degeneration, unspecified, bilateral is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H31.103?

Under the General Equivalence Mappings, choroidal degeneration, unspecified, bilateral converts to ICD-9-CM 362.77 (bruch membrane dystrophy) and 363.40 (choroidal degen NOS). The mapping is approximate, so confirm the match fits the documentation.