CID 4285 Macular Thickness Key Measurements

CID 4285 Macular Thickness Key Measurements (Current)
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Keyword:: MacularThicknessKeyMeasurements
FHIR Keyword:: dicom-cid-4285-MacularThicknessKeyMeasurements
Type:: Non-Extensible
Version:: 20250707
UID:: 1.2.840.10008.6.1.1538

Table CID 4285. Macular Thickness Key Measurements

Coding Scheme Designator	Code Value	Code Meaning	Units
LN	57108-3	Macular grid.center point thickness by OCT	(um, UCUM, "um")
LN	57109-1	Macular grid.center subfield thickness by OCT	(um, UCUM, "um")
LN	57110-9	Macular grid.inner superior subfield thickness by OCT	(um, UCUM, "um")
LN	57111-7	Macular grid.inner nasal subfield thickness by OCT	(um, UCUM, "um")
LN	57112-5	Macular grid.inner inferior subfield thickness by OCT	(um, UCUM, "um")
LN	57113-3	Macular grid.inner temporal subfield thickness by OCT	(um, UCUM, "um")
LN	57114-1	Macular grid.outer superior subfield thickness by OCT	(um, UCUM, "um")
LN	57115-8	Macular grid.outer nasal subfield thickness by OCT	(um, UCUM, "um")
LN	57116-6	Macular grid.outer inferior subfield thickness by OCT	(um, UCUM, "um")
LN	57117-4	Macular grid.outer temporal subfield thickness by OCT	(um, UCUM, "um")
LN	57118-2	Macular grid.total volume by OCT	(uL, UCUM, "uL")
DCM	131255	Average macular thickness	(um, UCUM, "um")

Note

The Macular grid measurement concepts, based on the ETDRS grid, are included in LOINC panel 57115-8 Optical coherence tomography panel. The ETDRS grid defines the center subfield diameter of 1 mm, inner subfields diameter of 3 mm, and the outer subfields diameter of 6 mm; see Section UU.5 “En Face Measurements” in PS3.17 .

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