LOINC Code 73561-3: Insulin-like growth factor-I [Z-score]

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Insulin-like growth factor-I. It is commonly used with the system or sample type Ser/Plas.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Insulin-like growth factor-I [Z-score] in Serum or Plasma
• Insulin-like growth factor-I
• IGF-1 is used by physicians as a screening test for growth hormone deficiency and excess in acromegaly and gigantism. Interpretation of IGF-1 levels is complicated by the wide normal ranges, and variations by age, sex, and pubertal stage. Clinically significant conditions and changes may be masked by the wide normal ranges. For this reason, it is useful to report by Z score, a statistical measure that is useful for comparing data points derived from populations with different means and/or standard deviations.
• Chemistry; Fac; Fact; Factor 1; FI; HUM; Humulin; IGF; IGF1; IGF-1; IGF-I; IH7; Insul; Lente; NPH; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Semilente; SerP; SerPl; SerPlas; Serum; Serum or plasma; Sliding; Somatomedin C; SR; Standard score; Ultralente; Z score; Z value; Z-score

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions