U.S. ICD-10-CM · FY 2027

D21 ICD-10-CM Code: Other benign neoplasms of connective and other soft tissue

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

D21

Other benign neoplasms of connective and other soft tissue

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where D21 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

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

  3. 3

    Category D21

    Other benign neoplasms of connective and other soft tissue

  4. 4

    Code D21

    Other benign neoplasms of connective and other soft tissue

More specific choices

Codes under D21

D21 is a non-billable category. Choose the child code that best matches the documented diagnosis.

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

D21.2

Benign neoplasm of connective and other soft tissue of 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

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for D21.

Code first

No “code first” instruction is listed for D21.

Use additional code

No “use additional code” instruction is listed for D21.

Excludes1

Conditions that should not be reported together with this code.

  • 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.-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for D21.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code D21 mean?

D21 is the FY 2027 U.S. ICD-10-CM code for “Other benign neoplasms of connective and other soft tissue.”

Is D21 a billable or specific ICD-10-CM code?

No. D21 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is D21 located in ICD-10-CM?

D21 is listed in Chapter 2, Neoplasms (C00-D49), within Benign neoplasms, except benign neuroendocrine tumors (D10-D36) (D10–D36), under category D21, Other benign neoplasms of connective and other soft tissue.

What coding notes are listed for D21?

No inclusion terms are listed for D21 in this reference record. No code-first instruction is listed. Excludes1 notes: 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.-). No Excludes2 note is listed.

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