ICD-9-CM Tabular Index · Legacy Code Set 366.00-366.9

366 Cataract (366.00-366.9) ICD-9-CM

The 366.00-366.9 block classified 366 cataract with 37 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.

⚠ Legacy code set – replaced by ICD-10-CM on October 1, 2015✓ Built from the final CMS ICD-9-CM release
37
Legacy Codes
366.00-366.9
Code Range
2015
Retired October 1
ICD-10-CM
Replaced By

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.

ICD-9-CM

Legacy Codes in the 366.00-366.9 Block 37 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.

37 of 37 shown

Questions About This Page

Are the 366.00-366.9 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 366.00-366.9 block classify?

The block classified 366 cataract with 37 codes in the final ICD-9-CM release. It sat under Diseases of the sense organs (360–389) in the legacy hierarchy.

Related References

ICD-9-CM IndexAll of Diseases of the sense organsAll of 360-379ICD-9 / ICD-10 ConverterICD-9 Code LookupICD-10-CM Codes ListICD-10-PCS Codes List

Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.