D21
ICD-10Non-billable categoryOther benign neoplasms of connective and other soft tissue
Official ICD-10-CM descriptor (FY2026)
Other benign neoplasms of connective and other soft tissue
D21 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- 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
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- benign neoplasm of articular cartilage (D16.-)
- benign neoplasm of cartilage of larynx (D14.1)
- benign neoplasm of cartilage of nose (D14.0)
- benign neoplasm of connective tissue of breast (D24.-)
- benign neoplasm of peripheral nerves and autonomic nervous system (D36.1-)
- benign neoplasm of peritoneum (D20.1)
- benign neoplasm of retroperitoneum (D20.0)
- benign neoplasm of uterine ligament, any (D28.2)
- benign neoplasm of vascular tissue (D18.-)
- hemangioma (D18.0-)
- lipomatous neoplasm (D17.-)
- lymphangioma (D18.1)
- uterine leiomyoma (D25.-)
More specific codes under D21
- D21.0Benign neoplasm of connctv/soft tiss of head, face and neck
- D21.1Benign neoplm of connctv/soft tiss of upper limb, inc shldrcategory
- D21.2Benign neoplasm of connctv/soft tiss of lower limb, inc hipcategory
- D21.3Benign neoplasm of connective and oth soft tissue of thorax
- D21.4Benign neoplasm of connective and oth soft tissue of abdomen
- D21.5Benign neoplasm of connective and oth soft tissue of pelvis
- D21.6Benign neoplasm of connctv/soft tiss of trunk, unsp
- D21.9Benign neoplasm of connective and other soft tissue, unsp
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.