2027 ICD-10-CM Diagnosis Code H95.54Postprocedural seroma of ear and mastoid process following other procedure
ICD-10-CM Codes›H60–H95›H95›H95
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
H95.54 is a billable ICD-10-CM diagnosis code for postprocedural seroma of ear and mastoid process following other procedure. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 919 through 921. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 76 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative ear and/or mastoid process complication.
Code Identity
Code Classification
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H95.54: its own notes plus those printed at Chapter 8. A note printed at a category, block or chapter applies to every code under it.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Notes
General instructions on how these codes are used.
- Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
postprocedural See Also: Complications, surgical procedure;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Convert H95.54 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code History & ChangesHistory
Replacement H95.54 replaces the following previously assigned code(s):
- H95.42 - Postproc hemor/hemtom of ear/mastd following oth procedure
- H95.42 - Postproc hemorrhage of ear/mastd following other procedure
Questions About H95.54Overview
Is H95.54 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report postprocedural seroma of ear and mastoid process following other procedure on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H95.54 group to?
When postprocedural seroma of ear and mastoid process following other procedure is the principal diagnosis on an inpatient stay, it groups to MS-DRG 920, 919, 921, with relative weights from 0.6719 to 1.7624 depending on complications. Higher weights mean higher Medicare reimbursement.
Is H95.54 a CC or MCC?
CMS lists H95.54 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 76 closely related codes in its exclusion list.
What is the ICD-9 equivalent of H95.54?
Under the General Equivalence Mappings, postprocedural seroma of ear and mastoid process following other procedure converts to ICD-9-CM 998.13 (seroma complicting proc). The mapping is approximate, so confirm the match fits the documentation.
