ICD-9-CM Tabular Index · Legacy Code Set 999.0-999.9

999 Complications of medical care, not elsewhere classified (999.0-999.9) ICD-9-CM

The 999.0-999.9 block classified 999 complications of medical care, not elsewhere classified with 38 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

Legacy Codes

999.0-999.9

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 999.0-999.9 Block 38 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.

38 of 38 shown

999.0 Generalized vaccinia
999.1 Air embol comp med care
999.2 Vasc comp med care NEC
999.31 Oth/uns inf-cen ven cath
999.32 Blood inf dt cen ven cth
999.33 Lcl inf dt cen ven cth
999.34 Ac inf fol trans,inf bld
999.39 Infect fol infus/inj/vac
999.41 Anaphyl d/t adm bld/prod
999.42 Anaphyl react d/t vaccin
999.49 Anaph react d/t ot serum
999.51 Ot serum react d/t blood
999.52 Ot serum react d/t vacc
999.59 Other serum reaction
999.60 Abo incompat react NOS
999.61 Abo incomp/HTR NEC
999.62 Abo incompat/acute HTR
999.63 Abo incompat/delay HTR
999.69 Abo incompat reactn NEC
999.70 Rh incompat reaction NOS
999.71 Rh incomp/HTR NEC
999.72 Rh incompat/acute HTR
999.73 Rh incompat/delay HTR
999.74 Rh incompat reaction NEC
999.75 Non-abo incomp react NOS
999.76 Non-abo incomp/HTR NEC
999.77 Non-abo incomp/acute HTR
999.78 Non-abo incomp/delay HTR
999.79 Non-abo incomp react NEC
999.80 Transfusion reaction NOS
999.81 Extravstn vesicant chemo
999.82 Extravasn vesicant NEC
999.83 Hemolytc trans react NOS
999.84 Acute HTR NOS
999.85 Delayed HTR NOS
999.88 Infusion reaction NEC
999.89 Transfusion reaction NEC
999.9 Complic med care NEC/NOS

Questions About This Page

Are the 999.0-999.9 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 999.0-999.9 block classify?

The block classified 999 complications of medical care, not elsewhere classified with 38 codes in the final ICD-9-CM release. It sat under Injury and poisoning (800–999) in the legacy hierarchy.

Related References

ICD-9-CM Index All of Injury and poisoning All of 996-999 ICD-9 / ICD-10 Converter ICD-9 Code Lookup ICD-10-CM Codes List ICD-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.