998 Other complications of procedures, not elsewhere classified (998.00-998.9) ICD-9-CM
The 998.00-998.9 block classified 998 other complications of procedures, not elsewhere classified with 22 legacy diagnosis codes. None remain valid for claim submission; each code below links to its reference page with the official ICD-10-CM replacement under the CMS General Equivalence Mappings.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Legacy Codes in the 998.00-998.9 Block 22 codes
None of these codes remain valid for claim submission. Each code page shows its ICD-10-CM replacement under the CMS General Equivalence Mappings.
- 998.00 Postoperative shock, NOS
- 998.01 Postop shock,cardiogenic
- 998.02 Postop shock, septic
- 998.09 Postop shock, other
- 998.11 Hemorrhage complic proc
- 998.12 Hematoma complic proc
- 998.13 Seroma complicting proc
- 998.2 Accidental op laceration
- 998.30 Wound disruption NOS
- 998.31 Disrup internal op wound
- 998.32 Disrup-external op wound
- 998.33 Disrpt trauma wound repr
- 998.4 FB left during procedure
- 998.51 Infected postop seroma
- 998.59 Other postop infection
- 998.6 Persist postop fistula
- 998.7 Postop forgn subst react
- 998.81 Emphysema rsult frm proc
- 998.82 Ctrct frgmt frm ctr surg
- 998.83 Non-healing surgcl wound
- 998.89 Oth spcf cmplc procd NEC
- 998.9 Surgical complicat NOS
Questions About This Page
Are the 998.00-998.9 codes still billable?
No. Every code in this block became invalid for U.S. claims after September 30, 2015. Each code page linked above shows the ICD-10-CM replacement CMS assigned in the General Equivalence Mappings, and the ICD-9 / ICD-10 converter translates any of them directly.
What did the 998.00-998.9 block classify?
The block classified 998 other complications of procedures, not elsewhere classified with 22 codes in the final ICD-9-CM release. It sat under Injury and poisoning (800–999) in the legacy hierarchy.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
