D21 Other benign neoplasms of connective and other soft tissue

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other benign neoplasms of connective and other soft tissue is D21 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
D10-D36: Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
Category D21
15 codes (12 billable)
FY2026 Status
Stable since FY2024
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. These conditions should NOT be coded together with D21.
  • 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.-)

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.a
Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

D21.0 Benign neoplasm of connective and other soft tissue of head, face and neck D21.1 Benign neoplasm of connective and other soft tissue of upper limb, including shoulder D21.10 Benign neoplasm of connective and other soft tissue of unspecified upper limb, including shoulder D21.11 Benign neoplasm of connective and other soft tissue of right upper limb, including shoulder D21.12 Benign neoplasm of connective and other soft tissue of left upper limb, including shoulder D21.2 Benign neoplasm of connective and other soft tissue of lower limb, including hip D21.20 Benign neoplasm of connective and other soft tissue of unspecified lower limb, including hip D21.21 Benign neoplasm of connective and other soft tissue of right lower limb, including hip D21.22 Benign neoplasm of connective and other soft tissue of left lower limb, including hip D21.3 Benign neoplasm of connective and other soft tissue of thorax D21.4 Benign neoplasm of connective and other soft tissue of abdomen D21.5 Benign neoplasm of connective and other soft tissue of pelvis D21.6 Benign neoplasm of connective and other soft tissue of trunk, unspecified D21.9 Benign neoplasm of connective and other soft tissue, unspecified

Related Codes in D21

D21.0 Benign neoplasm of connective and other soft tissue of head, face and neck D21.1 Benign neoplasm of connective and other soft tissue of upper limb, including shoulder D21.10 Benign neoplasm of connective and other soft tissue of unspecified upper limb, including shoulder D21.11 Benign neoplasm of connective and other soft tissue of right upper limb, including shoulder D21.12 Benign neoplasm of connective and other soft tissue of left upper limb, including shoulder D21.2 Benign neoplasm of connective and other soft tissue of lower limb, including hip D21.20 Benign neoplasm of connective and other soft tissue of unspecified lower limb, including hip D21.21 Benign neoplasm of connective and other soft tissue of right lower limb, including hip D21.22 Benign neoplasm of connective and other soft tissue of left lower limb, including hip D21.3 Benign neoplasm of connective and other soft tissue of thorax D21.4 Benign neoplasm of connective and other soft tissue of abdomen D21.5 Benign neoplasm of connective and other soft tissue of pelvis D21.6 Benign neoplasm of connective and other soft tissue of trunk, unspecified D21.9 Benign neoplasm of connective and other soft tissue, unspecified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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