S21.05
Header — not billableOpen bite of breast
The ICD-10 code for open bite of breast is S21.05.
S21.05 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- superficial bite of breast (S20.17)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Bite of breast NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- S21.00Unspecified open wound of breastnon-billable header
- S21.01Laceration without foreign body of breastnon-billable header
- S21.02Laceration with foreign body of breastnon-billable header
- S21.03Puncture wound without foreign body of breastnon-billable header
- S21.04Puncture wound with foreign body of breastnon-billable header
- S21.05Open bite of breastnon-billable header