ICD-10-CM Codes
C00-D49
D10-D36
D31-
2023 ICD-10-CM Diagnosis Code D31.1

2023 ICD-10-CM Diagnosis Code D31.1

Benign neoplasm of cornea

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

D31.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM D31.1 became effective on October 1, 2022.
This is the American ICD-10-CM version of D31.1 - other international versions of ICD-10 D31.1 may differ.

The following code(s) above D31.1 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to D31.1:

C00-D49
2023 ICD-10-CM Range C00-D49
Neoplasms
Note
- 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).
Neoplasms
D31
ICD-10-CM Diagnosis Code D31
Benign neoplasm of eye and adnexa
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-)
Benign neoplasm of eye and adnexa

Clinical Information

Abnormal growth of the cells of the cornea without malignant characteristics.

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

ICD-10-CM Codes Adjacent To D31.1

D30.22 Benign neoplasm of left ureter

D30.3 Benign neoplasm of bladder

D30.4 Benign neoplasm of urethra

D30.8 Benign neoplasm of other specified urinary organs

D30.9 Benign neoplasm of urinary organ, unspecified

D31 Benign neoplasm of eye and adnexa

D31.0 Benign neoplasm of conjunctiva

D31.00 Benign neoplasm of unspecified conjunctiva

D31.01 Benign neoplasm of right conjunctiva

D31.02 Benign neoplasm of left conjunctiva

D31.1 Benign neoplasm of cornea

D31.10 Benign neoplasm of unspecified cornea

D31.11 Benign neoplasm of right cornea

D31.12 Benign neoplasm of left cornea

D31.2 Benign neoplasm of retina

D31.20 Benign neoplasm of unspecified retina

D31.21 Benign neoplasm of right retina

D31.22 Benign neoplasm of left retina

D31.3 Benign neoplasm of choroid

D31.30 Benign neoplasm of unspecified choroid

D31.31 Benign neoplasm of right choroid

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code D31.1

Benign neoplasm of cornea

Neoplasms

Benign neoplasm of eye and adnexa