D21.9 — Benign neoplasm of connective and other soft tissue, unspecified
D21.9 is a billable, specific ICD-10-CM code for benign neoplasm of connective and other soft tissue, unspecified. It is valid for submission on a claim.
Risk adjustment
D21.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
D21.9 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56346Billing and Coding: Removal of Benign and Malignant Skin Lesions
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
- A56695Billing and Coding: Implantable Infusion Pump
- A57452Billing and Coding: Peripheral Nerve Blocks
How D21.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D21.9.
- Kimura disease
- Disease, diseased›Kimura
Related codes at this level
Codes that share D21. If D21.9 is not quite right, the correct code is usually one of these.
- 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 shoulder
- D21.2Benign neoplasm of connective and other soft tissue of lower limb, including hip
- 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
Questions about D21.9
- Is D21.9 a billable ICD-10-CM code?
- Yes. D21.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D21.9 sit in the tabular list?
- Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).