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Discussion regarding new terms / updates for existing terms for diabetic retinopathy

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  1. Hi Elaine Wooler I know at the last CRG meeting we mentioned a new framework / spreadsheet for content requests, but I can't seem to find where it is located (I may not be looking in the right places on the Confluence and if that's the case, my apologies!). If you can share that, we would be happy to fill it in accordingly for a set of new requests related to diabetic retinopathy phenotypes. In the meantime, I am sharing the proposed new concepts, their definitions, and peer-reviewed literature references, similar to what we did last time for a series of retina condition codes. I am also adding Cindy Cai to this thread as she is our retina domain expert and led the group that identified these. I inserted a link to a document but in case it's easier to read directly in the forum, I'm also copying directly into the thread here (although it seems like the numbering went awry after copying, but the concepts are all there): 

    Diabetic Retinopathy Concepts

    1. Neovascularization

    ICD-10-CM code: H35.05 (neovascularization, retina)

    Definition: is the natural formation of new blood vessels in the form of functional microvascular network, capable of perfusion of red blood cells, that form as collateral circulation in response to local poor perfusion or ischemia

    Literature review:

    Investigative ophthalmology & visual science - 10.1167/iovs.65.1.22

    Scientific reports - 10.1038/s41598-023-49964-8

    Journal of opharmaceutical analysis - 10.1016/j.jpha.2023.05.002


    1. Severe proliferative diabetic retinopathy

    ICD-10-CM code: none

    Definition: based on clinical impression,
    1) Severe new vessels and severe fibrous proliferation
    2) Severe new vessels and red vitreous hemorrhage
    3) moderate new vessels, severe fibrous proliferations, and red vitreous hemorrhage

    Literature review:

                            Ophthalmic surgery, lasers and imaging retina –

    https://doi.org/10.3928/1542-8877-20030701-01

    Ophthalmology - 10.1016/s0161-6420(85)34002-2

    Archives of ophthalmology - doi:10.1001/archopht.1985.01050110038020


    1. Vitreous hemorrhage

    ICD-10-CM code: H43.1 (hemorrhage, vitreous [humour] [intraocular])

    Definition: Any blood in the vitreous cavity; presence of extravasated blood within a space lined by posterior lens capsule anteriorly, internal limiting membrane posteriorly, and non-pigmented epithelium of ciliary body laterally

    Literature review:

                            Survey of Ophthalmology - https://doi.org/10.1016/S0039-6257(97)84041-6

                            Ophthalmology - https://doi.org/10.1016/S0161-6420(87)33528-6

                            Canadian journal of ophthalmology - https://doi.org/10.1016/j.jcjo.2017.09.027


    1. Arteriolar abnormalities

    ICD-10-CM code: none

    Definition: have been described in persons with and without hypertension and associated with clinical and subclinical manifestations of atherosclerosis and a broad group of risk factors for vascular disease; described as focal and generalized narrowing and arteriovenous nicking

    Literature review:

    Retina - 10.1097/IAE.0000000000003959

    Arteriosclerosis, thrombosis, and vascular biology -https://doi.org/10.1161/01.ATV.20.6.1644

    Clinical & experimental ophthalmology - https://doi.org/10.1111/j.1442-9071.2008.01825.x


    1. Capillary nonperfusion

    ICD-10-CM code: none

    Definition: occurs when retina does not have the efficient tissue perfusion seen using fundus color or fundus fluorescein angiography

    Literature review:

                            Bioimpacts - 10.15171/bi.2015.27

                            Ophthalmology - doi: 10.1016/j.ophtha.2019.06.022.

                            Scientific reports - 10.1038/s41598-020-71622-6.


    1. Mild diabetic macular edema

    ICD-10-CM code: none

    Definition: some retinal thickening or hard exudates in the posterior pole, distant from the center of the macula

    Literature review:

                            Ophthalmic and physiological optics - 10.1111/opo.13261

    Ophthalmic and physiological optics - 10.1111/opo.13261

                            World journal of diabetes - 10.4239/wjd.v4.i6.290



    1. Moderate diabetic macular edema

    ICD-10-CM code: none

    Definition: retinal thickening or hard exudates near the center of the macula but not involving the center

    Literature review:

    Ophthalmic and physiological optics - 10.1111/opo.13261

    Ophthalmic and physiological optics - 10.1111/opo.13261

                            World journal of diabetes - 10.4239/wjd.v4.i6.290


    1. Perifoveal capillary nonperfusion

    ICD-10-CM code: none

    Definition: is the nonperfusion of the retina circumscribing the parafovea and fovea; perifovea is a belt that covers a 10 degree radius around the fovea and is 1.5 mm wide

    Literature review:

                            International ophthalmology - doi.org/10.1007/s10792-023-02882-0

                            Annals of eye science – 10.21037/aes.2017.06.08

                            European journal of ophthalmology - https://doi.org/10.5301/ejo.5000948          


    1. Severe diabetic macular edema

    ICD-10-CM code: none

    Definition: retinal thickening or hard exudates involving the center of the macula

    Literature review:

                            Ophthalmology - https://doi.org/10.1016/S0161-6420(03)00475-5

    Ophthalmic and physiological optics - 10.1111/opo.13261

                            World journal of diabetes - 10.4239/wjd.v4.i6.290


    1. Intraretinal hemorrhages

    ICD-10-CM code: none

    Definition: hemorrhage of the retina located in various layers from the internal limiting membrane to the outer nuclear layer which can cause hypofluorescent blockage

    Literature review:

                            Investigative ophthalmology & visual science - 10.1167/iovs.64.15.39

    Journal of vitreoretinal diseases - 10.1177/24741264231163395

    Romanian journal of ophthalmology - 10.22336/rjo.2023.51


    1. Macular ischemia

    ICD-10-CM code: none

    Definition: is a common complication of diabetic retinopathy that is associated with damage in the vessels that supply blood to the retina and the enlargement of the foveal avascular zone

    Literature review:

                            Ophthalmology and therapy - 10.1007/s40123-022-00546-3

                            Ophthalmologica, International journal of ophthalmology - 10.1159/000515406                           Cureus - 10.7759/cureus.3064


    1. Soft exudates

    ICD-10-CM code: none

    Definition: is a yellow-white lesion in the superficial retina that usually occupies an area less than one fourth of that of the optic nerve

    Literature review:

    Computers in biology and medicine - 10.1016/j.compbiomed.2023.107854

                            Journal of digital imaging - 10.1007/s10278-015-9793-5

    British medical journal case reports - https://doi.org/10.1136/bcr-2023-255723

  2. Hi Sally Baxter and Cindy Cai 

    It might be that you don't have the lefthand sidebar open.  If you open that, the link is at the bottom of the page but also below for ease as not always easy to find these things.

    SNOMED CT Content requests

    Best wishes

    Elaine

  3. Thank you Elaine Wooler - I totally missed that link at the bottom of the sidebar! thank you