ICD-10-CM 2027 diagnosis code

D31.9Benign neoplasm of unspecified part of eye

Not billable — use a more specific code

D31.9 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Looking up by condition? See ICD-10 code for Melanocytoma.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D31.9

D31.9 is the ICD-10-CM diagnosis code for benign neoplasm of unspecified part of eye. It belongs to category D31 (benign neoplasm of eye and adnexa), block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within D31, choose D31.9 (unspecified part of eye) only when documentation doesn't support a more specific option: conjunctiva (D31.0), cornea (D31.1), retina (D31.2), choroid (D31.3), ciliary body (D31.4), lacrimal gland and duct (D31.5) and unspecified site of orbit (D31.6).

To report this condition, pick the subcode that matches the documentation: D31.90 (eye), D31.91 (eye) and D31.92 (eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under D31.9

Coding notes

Applicable toConditions and synonyms classified to this code

Benign neoplasm of eyeball

Notes that apply from higher levels

Instructions written at a parent level also apply to D31.9.

› From D31 Benign neoplasm of eye and adnexa

Excludes1

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-)

Broader instructions also apply from Chapter 2: Neoplasms.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to D31.9.

Table of Drugs & Neoplasms entries

Neoplasm, neoplastic › eye NEC — Benign
Neoplasm, neoplastic › eyeball — Benign
Neoplasm, neoplastic › intraocular — Benign

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about D31.9

Is D31.9 billable?: No. D31.9 is a header code. Report one of its more specific subcodes instead.