HL7 FHIR® Implementation Guide: Ophthalmology Retinal, Release 1
0.1.0 - STU 1 Ballot

HL7 FHIR® Implementation Guide: Ophthalmology Retinal, Release 1, published by HL7 International - Patient Care WG. This is not an authorized publication; it is the continuous build for version 0.1.0). This version is based on the current content of https://github.com/HL7/fhir-eyecare-ig/ and changes regularly. See the Directory of published versions

## ValueSet: Ophthalmology observations (SNOMED)

Summary

Defining URL: | http://terminology.hl7.org/uv/eyecare/ValueSet/observable-entities
Version: | 0.1.0
Name: | OphthalmologyObservableEntitiesValueSet
Title: | Ophthalmology observations (SNOMED)
Status: | Experimental as of 2019-05-01
Definition: | Concept descends from 363926002 - Eye/vision observable (observable entity)
Publisher: | HL7 International - Patient Care WG
Copyright: | This value set includes content from SNOMED CT, which is copyright © 2002+ International Health Terminology Standards Development Organisation (IHTSDO), and distributed by agreement between IHTSDO and HL7. Implementer use of SNOMED CT is not covered by this agreement
Source Resource: | XML / JSON / Turtle

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

### Logical Definition (CLD)

- Include codes from `http://snomed.info/sct` where concept descends from 363926002 (Eye/vision observable (observable entity))

### Expansion

This value set contains 375 concepts

Expansion based on SNOMED CT International edition 31-Mar 2022

All codes in this table are from the system `http://snomed.info/sct`

Code | Display
4187002 | Dark adaptation curve
7423001 | Critical fusion frequency
9995004 | Hue discrimination
17441009 | Resolution threshold
18332003 | Scotopic dominator curve
31763002 | Ocular motility
36459006 | Vernier acuity
39122004 | Quadrantic visual field
40137007 | Pupil light reflex
41633001 | Intraocular pressure
45832002 | Pupil afferent light reaction
47446005 | Achromatic interval
48441002 | Vision depth of focus
55070006 | Chromatic threshold
55591008 | Conjunctive eye movement
57503003 | Secondary visual deviation
59236006 | Temporal visual field
60747006 | Doll's head reflex
64607003 | Coordinated eye movement
65077007 | Disjunctive ocular movement
68015005 | Receptive field
68362006 | Binocular vision
70697002 | Sensitivity of retina
71964006 | Primary visual deviation
73750009 | Visual field
74155003 | Field of fixation
76700007 | Nasal visual field
77219005 | Saccadic eye movement
81758000 | Threshold visibility curve
84917001 | Indirect light pupillary reflex
91444001 | Smooth pursuit movement
113147002 | Pupil reaction to light
225567004 | Appearance of cornea
225568009 | General appearance of eye
225898008 | Position of artificial lens
246223004 | Prism base direction
246612009 | General visual responses
246613004 | General reaction to light
246620006 | Visual alertness
246621005 | Visual attentiveness
246624002 | Visual behavior
246633000 | Distance vision, general quality
246646005 | Quality of visual image
246647001 | Clarity of visual image
246648006 | Visual image size
246649003 | Brightness of visual image
246683005 | Ocular head posture
246692008 | Eye movement with both eyes open
246693003 | Range of movement of both eyes open
246704007 | Eye movement with one eye open
246705008 | Range of movement of one eye open
246706009 | Ocular convergence
246707000 | Convergence on approaching object
246710007 | Convergence near point
246716001 | Ocular divergence
246719008 | Quality of focus
246721003 | Speed of focus
246724006 | Position of pupil light reflex
246760001 | Micronystagmus
246765006 | Patterns of eye movement
246776005 | Reflex eye movement
246777001 | Horizontal doll's head reflex
246778006 | Vertical doll's head reflex
246785005 | Associated movements on eye movement
246786006 | Movement of globe on eye movement
246787002 | Movement of lids on eye movement
246788007 | Movement of head on eye movement
246790008 | Sounds associated with eye movement
246792000 | Eye measure
246793005 | Height of upper lid above pupil center
246794004 | Height of palpebral fissure
246795003 | Degree of levator lift
246796002 | Eye meridian
246797006 | Eye meridian start point
246820009 | Position of eyelid
246847004 | Movement of eyelid
246851002 | Tear drainage
246853004 | Fluorescein tear drainage
246858008 | Apposition of lower lacrimal punctum
246859000 | Opening of lower lacrimal punctum
246861009 | Opening of upper lacrimal punctum
246889007 | General appearance of limbal conjunctiva
246900007 | General appearance of palpebral conjunctiva
246917000 | Position of eyeball
246933002 | Corneal epithelial staining pattern
246974002 | Color of sclera
246979007 | Scleral vascularity
247014003 | Rate of pupil reaction to light
247016001 | Pupil motor light reaction
247018000 | Pupil reaction to dark
247019008 | Pupil near reaction
247022005 | Pupil movement
247026008 | Position of iris
247029001 | Iris pigmentation
247030006 | Color of iris
247046003 | Position of ciliary body
247050005 | Position of lens
247053007 | Cataract form
247063004 | Cataract maturity
247073002 | Lens capsule clarity in pseudophakia
247088007 | Vitreous morphology
247104005 | General appearance of retina
247110005 | Retinal artery appearance
247116004 | Retinal vein appearance
247166005 | Status of macula in subtotal retinal detachment
247222003 | Optic disc cup
247225001 | Optic cup/disc ratio
250905001 | Optokinetic response
251685007 | Photostress recovery time
251686008 | Contrast sensitivity
251687004 | Monochrome contrast sensitivity
251688009 | Color contrast sensitivity
251691009 | Corneal thickness
251692002 | Ocular axial length
251693007 | Tear film break-up time
251694001 | Wetting distance
251696004 | Lacrimal patency
251706001 | Lacrimal sac access
251709008 | Corneal measurement
251710003 | Corneal curvature radius
251711004 | Corneal curvature meridian
251712006 | Corneal diameter
251713001 | Horizontal corneal diameter
251714007 | Vertical corneal diameter
251716009 | Endothelial cell density
251717000 | IOL determination
251718005 | Refractive power
251719002 | Intraocular lens implant refractive power (observable entity)
251720008 | Central retinal artery pressure
251721007 | Angle patency
251727006 | Angle appearance
251739003 | Distance visual acuity
251742009 | Distance visual acuity - binocular
251743004 | Near visual acuity
251746007 | Near visual acuity - binocular
251747003 | Near visual acuity - Jaeger's types
251750000 | Near visual acuity Jaeger's types - binocular
251761008 | Prism fusion range
251762001 | Prism strength
251771005 | Optical axis alignment
251772003 | Optical axis deviation
251777009 | Ocular accommodation power
251778004 | Ocular accommodation near point
251781009 | AC/A ratio
251782002 | Visual suppression area
251783007 | Visual suppression density
251784001 | Ocular fixation
251787008 | Ocular fixation preference
251788003 | Ocular fixation projection
251791003 | Field of binocular single vision
251793000 | Field of uniocular fixation
251794006 | Refraction
251795007 | Power of sphere
251796008 | Spherical addition
251797004 | Power of cylinder
251799001 | Axis of cylinder
251800002 | Back vertex distance
251801003 | Reading distance
251802005 | Intermediate distance
271731004 | Regularity of pupil
271733001 | Pupil reaction
301992006 | Ability to close eyes
311528003 | Visual scanning speed
313088003 | Ocular muscle balance
314541000 | Physiological nystagmus
359750002 | Stereoscopic acuity
363927006 | General characteristic of eye
363928001 | Moistness of eye
363929009 | Eyelid observable
363930004 | Appearance of eyelid
363931000 | Eye closing feature
363932007 | Measure of eyelid
363933002 | Palpebral fissure observable
363934008 | Measure of palpebral fissure
363935009 | Globe observable
363936005 | Appearance of eyeball
363937001 | Size of globe
363939003 | Measure of globe
363940001 | Conjunctival observable
363941002 | Limbal conjunctiva feature
363942009 | Palpebral conjunctival feature
363943004 | Corneal observable
363944005 | Corneal epithelium feature
363945006 | Corneal epithelial staining feature
363946007 | Anterior chamber observable
363947003 | Appearance of anterior chamber
363948008 | Depth of anterior chamber
363949000 | Observable of angle of anterior chamber
363950000 | Measure of anterior chamber
363951001 | Pupil observable
363952008 | Appearance of pupil
363953003 | Size of pupil
363954009 | Pupil shape
363955005 | Equality of pupils
363956006 | Iris observable
363957002 | Appearance of iris
363958007 | Ciliary body observable
363959004 | Crystalline lens observable
363960009 | Cataract feature
363961008 | Feature of lens capsule in pseudophakia
363962001 | Feature of artificial lens
363963006 | Sclera and episclera observable
363964000 | Anterior sclera feature
363965004 | Vitreous cavity observable
363966003 | Feature of red reflex
363967007 | Retina/choroid observable (observable entity)
363968002 | Retinal vessel feature
363969005 | Retinal artery feature
363970006 | Retinal vein feature
363971005 | Optic disc observable
363973008 | Lacrimal punctum feature
363974002 | Lower lacrimal punctum feature
363975001 | Upper lacrimal punctum feature
363976000 | Lacrimal sac feature
363978004 | Measure of lacrimation
363981009 | Color vision observable
363983007 | Visual acuity
363984001 | Orthoptic observable
363985000 | Characteristic of focusing (ocular)
363986004 | Feature of ocular balance
363987008 | Device of eye observable
363988003 | Prosthesis of eyeball (observable entity)
370937003 | Vertical cup disc ratio (observable entity)
370938008 | Horizontal cup disc ratio (observable entity)
370954006 | Corneal curvature refracting power (observable entity)
370959001 | Lens thickness (observable entity)
370962003 | Orbit observable (observable entity)
373642008 | Extraocular eye movement (observable entity)
386708005 | Visual acuity - left eye (observable entity)
386709002 | Visual acuity - right eye (observable entity)
386711006 | Near visual acuity - left eye (observable entity)
386712004 | Near visual acuity - right eye (observable entity)
386714003 | Distance visual acuity - right eye (observable entity)
386716001 | Distance visual acuity - left eye (observable entity)
386729001 | Near visual acuity Jaeger's types - left eye (observable entity)
386730006 | Near visual acuity Jaeger's types - right eye (observable entity)
392145005 | Horizontal diameter of optic disc (observable entity)
392158006 | Vertical diameter of optic disc (observable entity)
392159003 | Neuroretinal rim observable (observable entity)
392160008 | Neuroretinal rim color (observable entity)
392161007 | Neuroretinal rim width (observable entity)
392162000 | Neuroretinal rim slope (observable entity)
397252009 | Eye glasses observable (observable entity)
397253004 | Pantascopic angle (observable entity)
397254005 | Optical center distance (observable entity)
397255006 | Centration distance (observable entity)
397256007 | Fitting point position (observable entity)
397257003 | Fitting point height (observable entity)
397258008 | Interpupillary distance (observable entity)
397259000 | Monocular pupillary distance (observable entity)
397260005 | Overall diameter of intraocular lens (observable entity)
397261009 | Optic diameter of intraocular lens (observable entity)
397262002 | Intraocular lens model (observable entity)
397263007 | A-constant of intraocular lens (observable entity)
397264001 | Refractive index of intraocular lens (observable entity)
397265000 | Intraocular lens optic material (observable entity)
397266004 | Intraocular lens haptic material (observable entity)
397267008 | Intraocular lens haptic angulation (observable entity)
397268003 | Intraocular lens design (observable entity)
397269006 | Intraocular lens optic edge design (observable entity)
397270007 | Intraocular lens form (observable entity)
397271006 | Clarity of anterior chamber (observable entity)
397272004 | Bulbar conjunctiva feature (observable entity)
397273009 | General appearance of bulbar conjunctiva (observable entity)
397274003 | Exophthalmometry measurement (observable entity)
397280006 | Back vertex power (observable entity)
397281005 | Front vertex power (observable entity)
397282003 | Reading addition power (observable entity)
397288004 | Feature of spectacle lens (observable entity)
397289007 | Spectacle lens material (observable entity)
397290003 | Contact lens observable (observable entity)
397291004 | Contact lens type (observable entity)
397292006 | Contact lens manufacturer (observable entity)
397293001 | Contact lens model (observable entity)
397294007 | Contact lens fitting parameter (observable entity)
397295008 | Contact lens base curve (observable entity)
397296009 | Contact lens power curve (observable entity)
397297000 | Contact lens diameter (observable entity)
397298005 | Contact lens power (observable entity)
397300005 | Contact lens material (observable entity)
397301009 | Contact lens center thickness (observable entity)
397302002 | Contact lens optic zone (observable entity)
397303007 | Contact lens chord diameter (observable entity)
397304001 | Contact lens posterior vertex power (observable entity)
397305000 | Contact lens internal optical zone (observable entity)
397306004 | Contact lens external optical zone (observable entity)
397307008 | Contact lens cylinder power (observable entity)
397308003 | Contact lens cylinder axis (observable entity)
397309006 | Contact lens addition power (observable entity)
397310001 | Contact lens tint (observable entity)
397311002 | Intraocular lens manufacturer (observable entity)
397312009 | Intraocular lens anterior chamber depth (observable entity)
397534005 | Corrected visual acuity - left eye (observable entity)
397535006 | Corrected visual acuity - right eye (observable entity)
397536007 | Corrected visual acuity (observable entity)
405088009 | Vision compensation behavior (observable entity)
413077008 | LogMAR visual acuity left eye (observable entity)
413078003 | LogMAR visual acuity right eye (observable entity)
413920005 | Corneal shape (observable entity)
414174009 | Eye observable (observable entity)
414513003 | Instantaneous radius of curvature (observable entity)
414534005 | Intraocular lens implant cylinder power (observable entity)
414656001 | Mean corneal curvature (observable entity)
414921003 | Oblate cornea (observable entity)
415180009 | Prolate cornea (observable entity)
415504005 | Sclerotic scatter (observable entity)
415565009 | Spectacle lens base curve (observable entity)
415566005 | Spectacle lens ocular curve (observable entity)
415567001 | Specular reflection (observable entity)
415813002 | Vertex distance (observable entity)
415823006 | Vision observable (observable entity)
417323003 | Lacrimal drainage system observable (observable entity)
417624003 | Oculocephalogyric reflex (observable entity)
417949001 | Corneal optical zone (observable entity)
417977005 | Intermediate visual acuity - right eye (observable entity)
418423000 | Intermediate segment height (observable entity)
418553009 | Intermediate visual acuity (observable entity)
418772006 | Near reflex (observable entity)
419095003 | Range of accommodation (observable entity)
419309008 | Reading segment height (observable entity)
419419003 | Intermediate visual acuity - left eye (observable entity)
419475002 | Pinhole visual acuity (observable entity)
419775003 | Best corrected visual acuity (observable entity)
419821004 | Topographic optical zone (observable entity)
419862005 | Accommodative amplitude (observable entity)
420035005 | Intermediate visual acuity - binocular (observable entity)
420050001 | Uncorrected visual acuity (observable entity)
420160007 | Ocular tear film observable (observable entity)
420294002 | Nerve fiber layer (observable entity)
420346004 | Ocular accommodation far point (observable entity)
420443006 | Jerky pursuit movement (observable entity)
420534004 | Visual field index - loss variance (observable entity)
420598003 | Foveal sensitivity (observable entity)
420772006 | Index of refraction (observable entity)
420875001 | Visual field reliability (observable entity)
420962000 | Intercanthal distance (observable entity)
421140005 | Visual field index (observable entity)
421261009 | Eyelash observable (observable entity)
421362004 | Visual field index - pattern standard deviation (observable entity)
421507007 | Corneal endothelium observable (observable entity)
421528003 | Contact lens peripheral curve (observable entity)
421566000 | Corneal incision observable (observable entity)
421640006 | Confrontation visual field (observable entity)
421730004 | Lacrimal gland observable (observable entity)
421770006 | Corneal stroma observable (observable entity)
422149008 | Optic disc size (observable entity)
422162007 | Central corneal thickness (observable entity)
422347003 | Corneal graft appearance (observable entity)
422462002 | Margin reflex distance (observable entity)
422673001 | Snellen visual acuity (observable entity)
422746009 | Stage of retinopathy in retinopathy of prematurity (observable entity)
422859007 | Visual field index - mean deviation (observable entity)
423083007 | Visual field index - glaucoma hemifield test (observable entity)
423085000 | Accommodative response (observable entity)
423087008 | Scleral show measurement (observable entity)
423264007 | Lower eyelid margin reflex distance (observable entity)
423406008 | Inferior scleral show measurement (observable entity)
423436004 | Minimum perceptible acuity (observable entity)
423597007 | Upper eyelid margin reflex distance (observable entity)
423792003 | Lagophthalmos measurement (observable entity)
423817004 | Superior scleral show measurement (observable entity)
423833001 | Duration of eye contact (observable entity)
423945009 | Minimum visible acuity (observable entity)
423968000 | Episcleral venous pressure (observable entity)
424391002 | Hertel exophthalmometry measurement (observable entity)
424544008 | Tear meniscus height (observable entity)
424612002 | Minimum separable acuity (observable entity)
424622008 | Potential acuity meter visual acuity (observable entity)
424633006 | Minimum legible acuity (observable entity)
424804007 | Accommodative effort (observable entity)
425141002 | Brightness acuity testing visual acuity (observable entity)
699662005 | Keratometry steep power
699663000 | Keratometry steep axis
699664006 | Keratometry flat power
699666008 | Keratometry flat axis (observable entity)

Explanation of the columns that may appear on this page:

Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
Source | The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code | The code (used as the code in the resource instance)
Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition | An explanation of the meaning of the concept
Comments | Additional notes about how to use the code