D31.42 Benign neoplasm of left ciliary body

Billable ICD-10-CM code, FY2026.

Applies from D31 Benign neoplasm of eye and adnexa

Excludes1 (never code together)

• 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-)

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 224.0 Benign neoplasm of eyeball, except conjunctiva, cornea, retina, and choroid (approximate)

Nearby codes

• D31.31 Benign neoplasm of right choroid
• D31.32 Benign neoplasm of left choroid
• D31.4 Benign neoplasm of ciliary body
• D31.40 Benign neoplasm of unspecified ciliary body
• D31.41 Benign neoplasm of right ciliary body
• D31.42 Benign neoplasm of left ciliary body (this code)
• 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