S09.20XA — Traumatic rupture of unspecified ear drum, initial encounter
Is S09.20XA billable?
Yes, but S09.20XA will trip a Medicare edit. S09.20XA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, CMS lists S09.20XA under Medicare Code Editor edit 20, “Unspecified code” — meaning a code specifying laterality (right, left or bilateral) exists in the same family. On an inpatient claim this triggers the edit, because CMS holds that there are very limited circumstances in which laterality cannot be documented.
S09.20XA at a glance
| Code | S09.20XA |
|---|---|
| Description | Traumatic rupture of unspecified ear drum, 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 S09.20XA?
In S09.20XA, the 7th character A means initial encounter. The 7th character is required for S09.20XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
What Medicare edits apply to S09.20XA?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name S09.20XA directly.
A code specifying laterality (right, left or bilateral) exists in the same family. CMS holds that there are very limited circumstances in which laterality cannot be documented.
Which MS-DRGs does S09.20XA group to?
S09.20XA 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
As a secondary diagnosis, S09.20XA is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S09.20XA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S09.2, the nearest indexed parent of S09.20XA. Use them to find the family, then select the specific code.
- Puncture › tympanum, tympanic membrane
- Wound, open › tympanum, tympanic membrane
- Laceration › ear › drum
- Perforation, perforated › tympanum, tympanic › traumatic, current episode (nontraumatic) (of)
- Puncture › ear › drum
- Rupture, ruptured › ear drum › traumatic
- Wound, open › ear › drum
Excludes1 — never code together — inherited from S09.2
The conditions below can never be reported together with S09.20XA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- traumatic rupture of ear drum due to blast injury (S09.31-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S09.20XA to fully describe the condition. S09.20XA 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 S09.20XA, but a patient may have both at the same time. When documentation supports it, S09.20XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S00-S09
The conditions below are not part of S09.20XA, but a patient may have both at the same time. When documentation supports it, S09.20XA 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 S09.20XA is sequenced first depends on the reason for the encounter.
- for any associated infection
How long has S09.20XA existed?
S09.20XA 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.