E21.4 Other specified disorders of parathyroid gland

Instructional Notes:

E21.4
Description: Other specified disorders of parathyroid gland
↓
E21
Description: Hyperparathyroidism and other disorders of parathyroid gland
Exclude1:
- adult osteomalacia (M83.-)
- ectopic hyperparathyroidism (E34.2)
- hungry bone syndrome (E83.81)
- infantile and juvenile osteomalacia (E55.0)
Exclude2:
- familial hypocalciuric hypercalcemia (E83.52)
↓
E20-E35
Description: Disorders of other endocrine glands (E20-E35)
Exclude1:
- galactorrhea (N64.3)
- gynecomastia (N62)
↓
E00-E89
Description: Endocrine, nutritional and metabolic diseases
Exclude1:
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Notes:
- All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.