S21.05
Non-billableOpen bite of breast
S21.05 is the ICD-10-CM code for Open bite of breast. It is a non-billable category code — use a more specific child code such as S21.051 for billing.
S00-T88 Injury, poisoning and certain other consequences of external causes
Includes
- •Bite of breast NOS
Excludes1 — not coded here
- •superficial bite of breast (S20.17)
Frequently asked questions
- What is ICD-10 code S21.05?
- S21.05 is the ICD-10-CM code for "Open bite of breast". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
- Is S21.05 a billable code?
- No — S21.05 is a non-billable header code. Use a more specific child code (such as S21.051) for billing.
- What are the subcodes of S21.05?
- S21.05 has 3 more specific child codes, including S21.051, S21.052, S21.059.
- What is excluded from S21.05?
- Excludes1 (not coded here): superficial bite of breast (S20.17).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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