S00.561A — Insect bite (nonvenomous) of lip, initial encounter
Is S00.561A billable?
Yes — S00.561A is billable for FY2027. S00.561A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S00.561A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S00.561A at a glance
| Code | S00.561A |
|---|---|
| Description | Insect bite (nonvenomous) of lip, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in S00.561A?
In S00.561A, the 7th character A means initial encounter. The 7th character is required for S00.561A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S00.561A group to?
S00.561A 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.
- 606Minor Skin Disorders with MCCmedical
- 607Minor Skin Disorders without MCCmedical
How is S00.561A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S00.561, the nearest indexed parent of S00.561A. Use them to find the family, then select the specific code.
- Bite › lip › superficial NEC › insect (s) (animal) (human)
Excludes1 — never code together — inherited from S00
The conditions below can never be reported together with S00.561A on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside S00.561A to fully describe the condition. S00.561A 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 S00.561A, but a patient may have both at the same time. When documentation supports it, S00.561A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S00-S09
The conditions below are not part of S00.561A, but a patient may have both at the same time. When documentation supports it, S00.561A and the excluded code may both be reported.
- burns and corrosions (T20-T32)
- effects of foreign body in ear (T16)
- effects of foreign body in larynx (T17.3)
- effects of foreign body in mouth NOS (T18.0)
- effects of foreign body in nose (T17.0-T17.1)
- effects of foreign body in pharynx (T17.2)
- effects of foreign body on external eye (T15.-)
- frostbite (T33-T34)
- insect bite or sting, venomous (T63.4)
Code also — inherited from S00-S09
Two codes may be needed to describe the condition fully. Whether S00.561A is sequenced first depends on the reason for the encounter.
- for any associated infection
How long has S00.561A existed?
S00.561A 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.