646 Other complications of pregnancy, not elsewhere classified (646.00-646.93) ICD-9-CM
The 646.00-646.93 block classified 646 other complications of pregnancy, not elsewhere classified with 42 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 646.00-646.93 Block 42 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.
- 646.00 Papyraceous fetus-unspec
- 646.01 Papyraceous fetus-deliv
- 646.03 Papyraceous fet-antepar
- 646.10 Edema in preg-unspec
- 646.11 Edema in preg-delivered
- 646.12 Edema in preg-del w p/p
- 646.13 Edema in preg-antepartum
- 646.14 Edema in preg-postpartum
- 646.20 Renal dis preg NOS-unsp
- 646.21 Renal dis NOS-delivered
- 646.22 Renal dis NOS-del w p/p
- 646.23 Renal dis NOS-antepartum
- 646.24 Renal dis NOS-postpartum
- 646.30 Recur preg loss-unspec
- 646.31 Recurnt preg loss-deliv
- 646.33 Recurnt preg loss-antep
- 646.40 Neuritis of preg-unspec
- 646.41 Neuritis-delivered
- 646.42 Neuritis-delivered w p/p
- 646.43 Neuritis of preg-antepar
- 646.44 Neuritis of preg-postpar
- 646.50 Bacteriuria preg-unspec
- 646.51 Asym bacteriuria-deliver
- 646.52 Asy bacteruria-del w p/p
- 646.53 Asy bacteriuria-antepart
- 646.54 Asy bacteriuria-postpart
- 646.60 Gu infect in preg-unspec
- 646.61 Gu infection-delivered
- 646.62 Gu infection-deliv w p/p
- 646.63 Gu infection-antepartum
- 646.64 Gu infection-postpartum
- 646.70 Liver/bil trct disr-unsp
- 646.71 Liver/bil trct disr-del
- 646.73 Liver/bil trct disr-ante
- 646.80 Preg compl NEC-unspec
- 646.81 Preg compl NEC-delivered
- 646.82 Preg compl NEC-del w p/p
- 646.83 Preg compl NEC-antepart
- 646.84 Preg compl NEC-postpart
- 646.90 Preg compl NOS-unspec
- 646.91 Preg compl NOS-delivered
- 646.93 Preg compl NOS-antepart
Questions About This Page
Are the 646.00-646.93 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 646.00-646.93 block classify?
The block classified 646 other complications of pregnancy, not elsewhere classified with 42 codes in the final ICD-9-CM release. It sat under Complications of pregnancy, childbirth, and the puerperium (630–679) 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.
