ICD-10 Code D44.4 – Neoplasm of uncertain behavior of craniopharyngeal duct (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D44.4 – Neoplasm of uncertain behavior of craniopharyngeal duct
What it is
D44.4 identifies a growth in the craniopharyngeal duct area whose behavior is uncertain, meaning the pathology cannot clearly label it benign or malignant. Use it when documentation supports an indeterminate neoplasm in this anatomic site.
Clinical signs
Clinical features vary; refer to documentation. Patients may have symptoms from a sellar or suprasellar mass, such as headache, visual changes, or endocrine disturbance, but the record must support the lesion’s location and uncertain behavior.
When to use this code
Use D44.4 when the provider documents a neoplasm of uncertain behavior arising from the craniopharyngeal duct region, including pathology or imaging descriptions that do not establish malignancy. It may also apply when the lesion is described as indeterminate or borderline in this site. Check documentation if the report uses a different primary site or definitive cancer terminology.
Do not use for
Do not use this code for clearly benign lesions, malignant neoplasms, or unspecified masses without documentation of uncertain behavior. Also avoid it when the lesion is documented in another intracranial location.
Coding tip
Confirm both the anatomic site and the phrase “uncertain behavior” before assigning D44.4.