What is the icd 9 cm code for anemia chronic secondary to blood loss due to adenomyosis?

The ICD-9-CM code for anemia chronic secondary to blood loss due to adenomyosis would be 285.9 for "Anemia, unspecified." However, for the underlying condition of adenomyosis, you would use 617.0 for "Adenomyosis of uterus." In practice, both codes may be used together to specify the anemia as secondary to adenomyosis-related blood loss.