533 Peptic ulcer, site unspecified (533.00-533.91) ICD-9-CM
The 533.00-533.91 block classified 533 peptic ulcer, site unspecified with 18 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 533.00-533.91 Block 18 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.
- 533.00 Ac peptic ulcer w hemorr
- 533.01 Ac peptic ulc w hem-obst
- 533.10 Ac peptic ulcer w perfor
- 533.11 Ac peptic ulc w perf-obs
- 533.20 Ac peptic ulc w hem/perf
- 533.21 Ac pept ulc hem/perf-obs
- 533.30 Acute peptic ulcer NOS
- 533.31 Ac peptic ulcer NOS-obst
- 533.40 Chr peptic ulcer w hem
- 533.41 Chr peptic ulc w hem-obs
- 533.50 Chr peptic ulcer w perf
- 533.51 Chr peptic ulc perf-obst
- 533.60 Chr pept ulc w hem/perf
- 533.61 Chr pept ulc hem/perf-ob
- 533.70 Chronic peptic ulcer NOS
- 533.71 Chr peptic ulcer NOS-obs
- 533.90 Peptic ulcer NOS
- 533.91 Peptic ulcer NOS-obstruc
Questions About This Page
Are the 533.00-533.91 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 533.00-533.91 block classify?
The block classified 533 peptic ulcer, site unspecified with 18 codes in the final ICD-9-CM release. It sat under Diseases of the digestive system (520–579) 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.
