S01.331A — Puncture wound without foreign body of right ear, initial encounter
Is S01.331A billable?
Yes — S01.331A is billable for FY2027. S01.331A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S01.331A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S01.331A at a glance
| Code | S01.331A |
|---|---|
| Description | Puncture wound without foreign body of right ear, 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 S01.331A?
In S01.331A, the 7th character A means initial encounter. The 7th character is required for S01.331A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S01.331A group to?
S01.331A sits in MDC 03 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 154Other Ear, Nose, Mouth and Throat Diagnoses with MCCmedical
- 155Other Ear, Nose, Mouth and Throat Diagnoses with CCmedical
- 156Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCCmedical
How is S01.331A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S01.331, the nearest indexed parent of S01.331A. Use them to find the family, then select the specific code.
- Puncture › ear › right
Excludes1 — never code together — inherited from S01
The conditions below can never be reported together with S01.331A 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 skull fracture (S02.- with 7th character B)
Use additional code — inherited from Chapter 19
Report an additional code alongside S01.331A to fully describe the condition. S01.331A 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 S01.331A, but a patient may have both at the same time. When documentation supports it, S01.331A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S00-S09
The conditions below are not part of S01.331A, but a patient may have both at the same time. When documentation supports it, S01.331A 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)
Excludes2 — not included here — inherited from S01
The conditions below are not part of S01.331A, but a patient may have both at the same time. When documentation supports it, S01.331A and the excluded code may both be reported.
Code also — inherited from S00-S09
Two codes may be needed to describe the condition fully. Whether S01.331A is sequenced first depends on the reason for the encounter.
- for any associated infection
Code also — inherited from S01
Two codes may be needed to describe the condition fully. Whether S01.331A is sequenced first depends on the reason for the encounter.
How long has S01.331A existed?
S01.331A 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.