D21.4 Benign neoplasm of connective and other soft tissue of abdomen

Billable ICD-10-CM code, FY2026.

Applicable to

• Benign stromal tumors of abdomen

Applies from D21 Other benign neoplasms of connective and other soft tissue

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 (never code 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.-)

MS-DRG index

Defines the logic of DRG(s) 564-566 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 215.5 Other benign neoplasm of connective and other soft tissue of abdomen

Code annotations containing back-references to D21.4

Back-references to D21.4

• Type 1 Excludes: D13 Benign neoplasm of other and ill-defined parts of digestive system ("benign stromal tumors of digestive system (D21.4)")

Back-references to D21

• Type 1 Excludes: D16 Benign neoplasm of bone and articular cartilage ("benign neoplasm of synovia (D21.-)")
• Code First: M63 Disorders of muscle in diseases classified elsewhere ("neoplasm (C49.-, C79.89, D21.-, D48.1-)")

Diagnosis Index entries for D21.4

• Tumor › stromal › gastric › benign
• Tumor › stromal › gastrointestinal › benign
• Tumor › stromal › intestine › benign
• Tumor › stromal › stomach › benign

Nearby codes

• 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 (this code)
• 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