D21 Other benign neoplasms of connective and other soft tissue

Category / Non-billable header 14 subcodes

Block: Benign neoplasms, except benign neuroendocrine tumors (D10-D36)

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

Excludes 1 (cannot be coded together)

  • 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.-)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
D21..0 Benign neoplasm of connective and other soft tissue of head, face and neck Yes
D21..1 Benign neoplasm of connective and other soft tissue of upper limb, including shoulder No
D21..10 Benign neoplasm of connective and other soft tissue of unspecified upper limb, including shoulder Yes
D21..11 Benign neoplasm of connective and other soft tissue of right upper limb, including shoulder Yes
D21..12 Benign neoplasm of connective and other soft tissue of left upper limb, including shoulder Yes
D21..2 Benign neoplasm of connective and other soft tissue of lower limb, including hip No
D21..20 Benign neoplasm of connective and other soft tissue of unspecified lower limb, including hip Yes
D21..21 Benign neoplasm of connective and other soft tissue of right lower limb, including hip Yes
D21..22 Benign neoplasm of connective and other soft tissue of left lower limb, including hip Yes
D21..3 Benign neoplasm of connective and other soft tissue of thorax Yes
D21..4 Benign neoplasm of connective and other soft tissue of abdomen Yes
D21..5 Benign neoplasm of connective and other soft tissue of pelvis Yes
D21..6 Benign neoplasm of connective and other soft tissue of trunk, unspecified Yes
D21..9 Benign neoplasm of connective and other soft tissue, unspecified Yes

Last reviewed: September 2026