660 Obstructed labor (660.00-660.93) ICD-9-CM
The 660.00-660.93 block classified 660 obstructed labor with 30 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 660.00-660.93 Block 30 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.
- 660.00 Obstruct/fet malpos-unsp
- 660.01 Obstruc/fet malpos-deliv
- 660.03 Obstruc/fet malpos-antep
- 660.10 Bony pelv obstruc-unspec
- 660.11 Bony pelv obstruct-deliv
- 660.13 Bony pelv obstruc-antepa
- 660.20 Abn pelv tiss obstr-unsp
- 660.21 Abn pelv tis obstr-deliv
- 660.23 Abn pelv tis obstr-antep
- 660.30 Persist occipitpost-unsp
- 660.31 Persist occiptpost-deliv
- 660.33 Persist occiptpost-antep
- 660.40 Shoulder dystocia-unspec
- 660.41 Shoulder dystocia-deliv
- 660.43 Shoulder dystocia-antepa
- 660.50 Locked twins-unspecified
- 660.51 Locked twins-delivered
- 660.53 Locked twins-antepartum
- 660.60 Fail trial lab NOS-unsp
- 660.61 Fail trial lab NOS-deliv
- 660.63 Fail trial lab NOS-antep
- 660.70 Failed forcep NOS-unspec
- 660.71 Failed forceps NOS-deliv
- 660.73 Fail forceps NOS-antepar
- 660.80 Obstruc labor NEC-unspec
- 660.81 Obstruct labor NEC-deliv
- 660.83 Obstruc labor NEC-antepa
- 660.90 Obstruc labor NOS-unspec
- 660.91 Obstruct labor NOS-deliv
- 660.93 Obstruc labor NOS-antepa
Questions About This Page
Are the 660.00-660.93 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 660.00-660.93 block classify?
The block classified 660 obstructed labor with 30 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.
