Benign neoplasm of connective and other soft tissue, unspecified
Billable / specific
D21.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Includes (from D21)
- benign neoplasm of blood vessel
- benign neoplasm of bursa
- benign neoplasm of cartilage
- benign neoplasm of fascia
- benign neoplasm of fat
- benign neoplasm of ligament, except uterine
- benign neoplasm of lymphatic channel
- benign neoplasm of muscle
- benign neoplasm of synovia
- benign neoplasm of tendon (sheath)
- benign stromal tumors
- Note: Functional activity
- Note: All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Note: Morphology [Histology]
- Note: Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Note: Primary malignant neoplasms overlapping site boundaries
- Note: A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Note: Malignant neoplasm of ectopic tissue
- Note: Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Excludes1
Not coded here — never report together with this code.
- benign neoplasm of articular cartilage (D16.-) (from D21)
- benign neoplasm of cartilage of larynx (D14.1) (from D21)
- benign neoplasm of cartilage of nose (D14.0) (from D21)
- benign neoplasm of connective tissue of breast (D24.-) (from D21)
- benign neoplasm of peripheral nerves and autonomic nervous system (D36.1-) (from D21)
- benign neoplasm of peritoneum (D20.1) (from D21)
- benign neoplasm of retroperitoneum (D20.0) (from D21)
- benign neoplasm of uterine ligament, any (D28.2) (from D21)
- benign neoplasm of vascular tissue (D18.-) (from D21)
- hemangioma (D18.0-) (from D21)
- lipomatous neoplasm (D17.-) (from D21)
- lymphangioma (D18.1) (from D21)
- uterine leiomyoma (D25.-) (from D21)
Also known as
- Disease, diseased, Kimura
- Kimura disease
Parent code
- D21Other benign neoplasms of connective and other soft tissueHeader
Related codes
- D21.0Benign neoplasm of connective and other soft tissue of head, face and neckBillable
- D21.1Benign neoplasm of connective and other soft tissue of upper limb, including shoulderHeader
- D21.2Benign neoplasm of connective and other soft tissue of lower limb, including hipHeader
- D21.3Benign neoplasm of connective and other soft tissue of thoraxBillable
- D21.4Benign neoplasm of connective and other soft tissue of abdomenBillable
- D21.5Benign neoplasm of connective and other soft tissue of pelvisBillable
- D21.6Benign neoplasm of connective and other soft tissue of trunk, unspecifiedBillable