|  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-)
 
 |  | 
|  |  | 
	
		|  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 |  
		|  |  | 
	
		| Excludes1 | dark area on retina (D49.81) hemangioma of retina (D49.81)
 neoplasm of unspecified behavior of retina and choroid (D49.81)
 retinal freckle (D49.81)
 
 |  |  |  |  | 
	
		|  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 |  |  |  |  | 
	
		|  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 |  |  | 
|  |  | 
	
		|  D31.5 |  | Benign neoplasm of lacrimal gland and duct |  
		|  |  | 
| Benign neoplasm of lacrimal sac |  | Benign neoplasm of nasolacrimal 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 |  
		|  |  | 
| Benign neoplasm of connective tissue of orbit |  | Benign neoplasm of extraocular muscle |  | Benign neoplasm of peripheral nerves of orbit |  | Benign neoplasm of retrobulbar tissue |  | Benign neoplasm of retro-ocular tissue |  
		| Excludes1 | benign neoplasm of orbital bone (D16.4) 
 |  |  |  |  | 
	
		|  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 |  
		|  |  | 
| Benign neoplasm of eyeball |  |  |  |  | 
	
		|  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 |  |  |