Version 2.78

Term Description

Axis measurement increment is the specificity to which a keratometer can measure the axis, typically 1 or 5 degrees. For example, a 5 degree increment allows measurement of 5, 10, 15 degrees, etc., while a 1 degree increment allows finer measurement to a single degree.
Source: Regenstrief LOINC

Part Descriptions

LP418605-4   Axis measurement increment
Axis measurement increment is the specificity to which a ophthalmologic device can measure the axis, typically 1 or 5 degrees. For example, a 5 degree increment allows measurement of 5, 10, 15 degrees, etc., while a 1 degree increment allows finer measurement to a single degree. Source: Regenstrief LOINC

LP418239-2   Axis eye
The axis is the orientation of the placement of the cylinder for astigmatism correction. The axis can be anywhere from 1 to 180 degrees. Source: Regenstrief LOINC

Fully-Specified Name

Component
Axis measurement increment
Property
Type
Time
Pt
System
Keratometer
Scale
Nom
Method

Additional Names

Long Common Name
Axis measurement increment Keratometer
Short Name
Axis step KM

Example Answer List: LL5576-5

Source: Japan Ophthalmic Instruments Association
Answer Code Score Answer ID
1 degree LA31063-3
5 degrees LA31064-1

Basic Attributes

Class
EYE.REFRACTION
Type
Clinical
First Released
Version 2.68
Last Updated
Version 2.68
Order vs. Observation
Observation

Member of these Panels

LOINC Long Common Name
95298-6 Keratometry panel

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Incremento de la medición del eje:Tipo:Punto temporal:Queratómetro:Nominal:
it-IT Italian (Italy) Assi, incremento della misura:Tipo:Pt:Oftalmometro:Nom:
Synonyms: Cheratometro Incremento della misura delle assi Occhio Oftalmologia - rifrazione Punto nel tempo (episodio)
zh-CN Chinese (China) 轴向测量增量:类型:时间点:角膜曲率计:名义型:
Synonyms: Refraction measurements;屈光度指标;屈光度测量指标;眼.屈光度指标;眼.屈光度测量指标;眼科.屈光度指标;眼科.屈光度测量指标;眼科学与视力测定变量.屈光度指标;眼科学与验光变量.屈光度指标;眼科学与验光变量.屈光度测量指标;眼科学与验光指标.屈光度指标;眼科学与验光指标.屈光度测量指标 分类型应答;分类型结果;名义性;名称型;名词型;名词性;标称性;没有自然次序的名义型或分类型应答 型 时刻;随机;随意;瞬间 眼;眼睛;眼科;眼科学与验光变量;眼科学与验光指标 角膜散光计;角膜计;角膜弧度仪 轴向（散光轴向、散光方向、眼轴、视轴、轴位）测量（检测、测定）增量（步长）

Example Units

Unit Source
deg Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=95300-0