D44

Non-Billable
ChapterC00–D49
Rankcategory
Official Description

Neoplasm of uncertain behavior of endocrine glands

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 2: Neoplasms (C00-D49).

D37-D48 Parent Instructions

Excludes1(Not coded here)
  • neoplasms of unspecified behavior (D49.-)

Instructional Notes

Excludes1(Not coded here)
  • multiple endocrine adenomatosis (E31.2-)
  • multiple endocrine neoplasia (E31.2-)
  • neoplasm of uncertain behavior of endocrine pancreas (D37.8)
  • neoplasm of uncertain behavior of ovary (D39.1-)
  • neoplasm of uncertain behavior of testis (D40.1-)
  • neoplasm of uncertain behavior of thymus (D38.4)

Clinical Hierarchy

CH2Neoplasms (C00-D49)
D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)
D44Neoplasm of uncertain behavior of endocrine glands
D44.0Neoplasm of uncertain behavior of thyroid gland
D44.1Neoplasm of uncertain behavior of adrenal gland
D44.2Neoplasm of uncertain behavior of parathyroid gland
D44.3Neoplasm of uncertain behavior of pituitary gland
D44.4Neoplasm of uncertain behavior of craniopharyngeal duct
D44.5Neoplasm of uncertain behavior of pineal gland
D44.6Neoplasm of uncertain behavior of carotid body
D44.7Neoplasm of uncertain behavior of aortic body and other paraganglia
D44.9Neoplasm of uncertain behavior of unspecified endocrine gland

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to D44:

blockD37-D48
Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to D44. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Adenoma4 unique routes
endocrine, multiple(2 variants)
two or more specified sites→D44
unspecified site→D44
multiple endocrine(2 variants)
two or more specified sites→D44
unspecified site→D44
Aldosteronoma1 unique routes
Direct index entry→D44
Craniopharyngioma1 unique routes
Direct index entry→D44
Paraganglioma14 unique routes
Direct index entry→D44
aortic body→D44
carotid body→D44
extra-adrenal→D44(2 variants)
unspecified site→D44
glomus jugulare→D44
jugular→D44
nonchromaffin→D44(2 variants)
unspecified site→D44
parasympathetic→D44(2 variants)
unspecified site→D44
sympathetic→D44(2 variants)
unspecified site→D44
unspecified site→D44
Pinealoma1 unique routes
Direct index entry→D44
Pineocytoma1 unique routes
Direct index entry→D44
Rathke's pouch tumor1 unique routes
Direct index entry→D44
Tumor2 unique routes
aortic body→D44
Rathke's pouch→D44

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Neoplasm of uncertain behavior of endocrine glands.

Search PCS Codes