2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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
Short Description
Benign neoplasm of eye and adnexa
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to D31: its own notes plus those printed at Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • 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-)

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About D31Overview

What is the ICD-10 code for benign neoplasm of eye and adnexa?

D31 is the ICD-10-CM category for benign neoplasm of eye and adnexa, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

Can D31 be reported with D21.0?

Not as a rule. The Excludes1 note on D31 lists "benign neoplasm of connective tissue of eyelid (D21.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).