ICD-10-CM 2027 diagnosis code

D31Benign neoplasm of eye and adnexa

Not billable — use a more specific code

D31 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

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

D31 is the ICD-10-CM diagnosis code for benign neoplasm of eye and adnexa. It belongs to 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 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: D31.0 (conjunctiva), D31.1 (cornea), D31.2 (retina), D31.3 (choroid), D31.4 (body), D31.5 (duct), D31.6 (orbit) and D31.9 (eye).

Don't report D31 together with the conditions in its Excludes1 note: benign neoplasm of connective tissue of eyelid (D21.0), benign neoplasm of optic nerve (D33.3) and benign neoplasm of skin of eyelid (D22.1-, D23.1-).

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

Coding notes

Excludes1Not coded here — never report together with this code

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 that apply from higher levels

Instructions written at a parent level also apply to D31.

Broader instructions also apply from Chapter 2: Neoplasms.

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

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