Multiple endocrine neoplasia [MEN] syndrome, unspecified

This code represents a diagnosis of multiple endocrine neoplasia (MEN) syndrome when the specific type (e.g., MEN1, MEN2A, MEN2B) has not been determined or documented. MEN syndromes are inherited conditions characterized by the development of tumors in two or more endocrine glands, often leading to overproduction of hormones.

Use this code when a patient is diagnosed with a MEN syndrome, but the specific subtype is not yet identified or documented in the medical record. This may occur during initial workup, genetic testing, or when the clinician has not specified the exact type. Documentation should clearly state "multiple endocrine neoplasia syndrome, unspecified" or similar.

• Do not use this code if a more specific MEN syndrome (e.g., MEN1, MEN2A, MEN2B) is documented; instead, use the appropriate specific code.
• Always query the provider for clarification if the documentation indicates a MEN syndrome but does not specify the type, to allow for more precise coding.
• This code should be sequenced as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if it is a co-morbidity.