2026 ICD-10-CM Diagnosis Code D31Benign neoplasm of eye and adnexa

ICD-10-CM Codes›C00–D49›D10-D36›D31

ICD-10-CM D31
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D31 is a non-billable ICD-10-CM category code for benign neoplasm of eye and adnexa, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D31.00, D31.01, D31.02, and D31.10.

Code Identity

ICD-10-CM Code
D31
Billable Status
No — Non-Billable Category
Code Describes
Benign neoplasm of eye and adnexa
Chapter
D10-D36
Benign neoplasms, except benign neuroendocrine tumors

Code Classification

ChapterC00–D49Neoplasms
SectionD10-D36Benign neoplasms, except benign neuroendocrine tumors
CategoryD31Benign neoplasm of eye and adnexa
This CodeD31Benign neoplasm of eye and adnexa

Specific Coding for Benign neoplasm of eye and adnexaOverview

Non-specific codes like D31 require more characters. Use one of these billable codes instead:

  • D31.0 for Benign neoplasm of conjunctiva

  • Use D31.00 for Benign neoplasm of unspecified conjunctiva

  • Use D31.01 for Benign neoplasm of right conjunctiva

  • Use D31.02 for Benign neoplasm of left conjunctiva

  • D31.1 for Benign neoplasm of cornea

  • Use D31.10 for Benign neoplasm of unspecified cornea

  • Use D31.11 for Benign neoplasm of right cornea

  • Use D31.12 for Benign neoplasm of left cornea

  • D31.2 for Benign neoplasm of retina

  • Use D31.20 for Benign neoplasm of unspecified retina

  • Use D31.21 for Benign neoplasm of right retina

  • Use D31.22 for Benign neoplasm of left retina

  • D31.3 for Benign neoplasm of choroid

  • Use D31.30 for Benign neoplasm of unspecified choroid

  • Use D31.31 for Benign neoplasm of right choroid

  • Use D31.32 for Benign neoplasm of left choroid

  • D31.4 for Benign neoplasm of ciliary body

  • Use D31.40 for Benign neoplasm of unspecified ciliary body

  • Use D31.41 for Benign neoplasm of right ciliary body

  • Use D31.42 for Benign neoplasm of left ciliary body

  • D31.5 for Benign neoplasm of lacrimal gland and duct

  • Use D31.50 for Benign neoplasm of unspecified lacrimal gland and duct

  • Use D31.51 for Benign neoplasm of right lacrimal gland and duct

  • Use D31.52 for Benign neoplasm of left lacrimal gland and duct

  • D31.6 for Benign neoplasm of unspecified site of orbit

  • Use D31.60 for Benign neoplasm of unspecified site of unspecified orbit

  • Use D31.61 for Benign neoplasm of unspecified site of right orbit

  • Use D31.62 for Benign neoplasm of unspecified site of left orbit

  • D31.9 for Benign neoplasm of unspecified part of eye

  • Use D31.90 for Benign neoplasm of unspecified part of unspecified eye

  • Use D31.91 for Benign neoplasm of unspecified part of right eye

  • Use D31.92 for Benign neoplasm of unspecified part of left eye

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • benign neoplasm of connective tissue of eyelid D21.0
  • benign neoplasm of optic nerve D33.3
  • benign neoplasm of skin of eyelid D22.1 D23.1

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

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

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D31Overview

Is D31 (Benign neoplasm of eye and adnexa) a billable code?

No. This is a category header that groups the codes for benign neoplasm of eye and adnexa, and headers cannot be submitted on claims. Claims for benign neoplasm of eye and adnexa need a more specific code from this category, such as D31.00, D31.01, and D31.02.