S20.172S — Other superficial bite of breast, left breast, sequela
Is S20.172S billable?
Yes — S20.172S is billable for FY2027. S20.172S is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S20.172S may be submitted for encounters from October 1, 2026 through September 30, 2027.
S20.172S at a glance
| Code | S20.172S |
|---|---|
| Description | Other superficial bite of breast, left breast, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in S20.172S?
In S20.172S, the 7th character S means sequela. The 7th character is required for S20.172S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S20.172S group to?
S20.172S sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 604Trauma to the Skin, Subcutaneous Tissue and Breast with MCCmedical
- 605Trauma to the Skin, Subcutaneous Tissue and Breast without MCCmedical
How is S20.172S listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S20.17, the nearest indexed parent of S20.172S. Use them to find the family, then select the specific code.
- Bite › breast › superficial NEC (s) (animal) (human)
Excludes1 — never code together — inherited from S20.17
The conditions below can never be reported together with S20.172S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- open bite of breast (S21.05-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S20.172S to fully describe the condition. S20.172S is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S20.172S, but a patient may have both at the same time. When documentation supports it, S20.172S and the excluded code may both be reported.
Excludes2 — not included here — inherited from S20-S29
The conditions below are not part of S20.172S, but a patient may have both at the same time. When documentation supports it, S20.172S and the excluded code may both be reported.
- burns and corrosions (T20-T32)
- effects of foreign body in bronchus (T17.5)
- effects of foreign body in esophagus (T18.1)
- effects of foreign body in lung (T17.8)
- effects of foreign body in trachea (T17.4)
- frostbite (T33-T34)
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4)
How long has S20.172S existed?
S20.172S 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.