2018 ICD-10-CM Diagnosis Code D31.9

Benign neoplasm of unspecified part of eye

Applicable To
  • Benign neoplasm of eyeball
The following code(s) above D31.9 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 D31.9:
  • C00-D49
    2018 ICD-10-CM Range C00-D49


    • 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).
  • D31
    ICD-10-CM Diagnosis Code D31

    Benign neoplasm of eye and adnexa

      2016 2017 2018 Non-Billable/Non-Specific 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-)
    Benign neoplasm of eye and adnexa
Clinical Information Code History

Diagnosis Index entries containing back-references to D31.9:

ICD-10-CM Codes Adjacent To D31.9
D31.41 Benign neoplasm of right ciliary body
D31.42 Benign neoplasm of left ciliary body
D31.5 Benign neoplasm of lacrimal gland and duct
D31.50 Benign neoplasm of unspecified lacrimal gland and duct
D31.51 Benign neoplasm of right lacrimal gland and duct
D31.52 Benign neoplasm of left lacrimal gland and duct
D31.6 Benign neoplasm of unspecified site of orbit
D31.60 Benign neoplasm of unspecified site of unspecified orbit
D31.61 Benign neoplasm of unspecified site of right orbit
D31.62 Benign neoplasm of unspecified site of left orbit
D31.9 Benign neoplasm of unspecified part of eye
D31.90 Benign neoplasm of unspecified part of unspecified eye
D31.91 Benign neoplasm of unspecified part of right eye
D31.92 Benign neoplasm of unspecified part of left eye
D32 Benign neoplasm of meninges
D32.0 Benign neoplasm of cerebral meninges
D32.1 Benign neoplasm of spinal meninges
D32.9 Benign neoplasm of meninges, unspecified
D33 Benign neoplasm of brain and other parts of central nervous system
D33.0 Benign neoplasm of brain, supratentorial
D33.1 Benign neoplasm of brain, infratentorial

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