<prompt> A 12-year-old child who is having difficulty in school is given an intelligence test. The test determines that the child is functioning mentally at the level of an 8-year-old child. What category of intellectual function best describes this child?Severely RetardedModerately RetardedMildly retardedBorderline  <response>: Using the IQ formula, IQ MACA x 100, the IQ of this child is 8 years mental age12 years chronological age x 100, that is, about 66 IQ. An individual with an IQ of 66 is classified with mild mental retardation IQ 50-70. ICD 10 LEVEL IQ ICD 10 code Mild Educable 50-70 F70 Moderate Trainable 35-49 F71 Severe Dependent 20-34 F72 Profoun 20 F73 Severity unspecified Untestable by standard tests F78 