D21 — Other benign neoplasms of connective and other soft tissue
Is D21 billable?
No — D21 is a non-billable header code. D21 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 12 billable codes beneath D21.
Billable codes under this header
- D21.0Benign neoplasm of connective and other soft tissue of head, face and neck
- D21.3Benign neoplasm of connective and other soft tissue of thorax
- D21.4Benign neoplasm of connective and other soft tissue of abdomen
- D21.5Benign neoplasm of connective and other soft tissue of pelvis
- D21.6Benign neoplasm of connective and other soft tissue of trunk, unspecified
- D21.9Benign neoplasm of connective and other soft tissue, unspecified
- D21.10Benign neoplasm of connective and other soft tissue of unspecified upper limb, including shoulder
- D21.11Benign neoplasm of connective and other soft tissue of right upper limb, including shoulder
- D21.12Benign neoplasm of connective and other soft tissue of left upper limb, including shoulder
- D21.20Benign neoplasm of connective and other soft tissue of unspecified lower limb, including hip
- D21.21Benign neoplasm of connective and other soft tissue of right lower limb, including hip
- D21.22Benign neoplasm of connective and other soft tissue of left lower limb, including hip
D21 at a glance
| Code | D21 |
|---|---|
| Description | Other benign neoplasms of connective and other soft tissue |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with D21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- 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.-)
Includes
Conditions classified to D21.
- 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
What codes fall under D21? (8)
- D21.0Benign neoplasm of connective and other soft tissue of head, face and neck
- D21.1Benign neoplasm of connective and other soft tissue of upper limb, including shouldernot billable
- D21.2Benign neoplasm of connective and other soft tissue of lower limb, including hipnot billable
- D21.3Benign neoplasm of connective and other soft tissue of thorax
- D21.4Benign neoplasm of connective and other soft tissue of abdomen
- D21.5Benign neoplasm of connective and other soft tissue of pelvis
- D21.6Benign neoplasm of connective and other soft tissue of trunk, unspecified
- D21.9Benign neoplasm of connective and other soft tissue, unspecified
How long has D21 existed?
D21 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with D21?
ICD-10-CM declares these codes mutually exclusive with D21 — exactly one of each pair can be correct for a given encounter.