Excludes1 pair

E23.0 vs R62-

E23.0 and R62 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on R62
hypopituitarism (E23.0)
E23.0

Hypopituitarism

Billable
Chapter 4
Endocrine, nutritional and metabolic diseases
Section
E20-E35
Use when the record says
  • Fertile eunuch syndrome
  • Hypogonadotropic hypogonadism
  • Idiopathic growth hormone deficiency
  • Isolated deficiency of gonadotropin
  • Isolated deficiency of growth hormone
  • Isolated deficiency of pituitary hormone
  • Kallmann's syndrome
  • Lorain-Levi short stature
Indexed under
  • Ahumada-del Castillo syndrome
  • Fertile eunuch syndrome
  • Hypopituitarism (juvenile)
  • Kallmann's syndrome
  • Lorain short stature syndrome (-Levi)
R62

Lack of expected normal physiological development in childhood and adults

Not billable
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Section
R50-R69

These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027