O66.3 – Obstructed labor due to other abnormalities of fetus
ICD-10-CM 2027 diagnosis code · Complications of labor and delivery
ICD-10-CM code
O66.3
- Code
O66.3(claims format:O663)- Description
- Obstructed labor due to other abnormalities of fetus
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 15. Pregnancy, childbirth and the puerperium (O00-O9A)
- Block
- O60-O77 Complications of labor and delivery
- Parent codes
- O66
Notes for O66.3
Applicable to:
- Dystocia due to fetal ascites
- Dystocia due to fetal hydrops
- Dystocia due to fetal meningomyelocele
- Dystocia due to fetal sacral teratoma
- Dystocia due to fetal tumor
- Dystocia due to hydrocephalic fetus
Use additional code:
- code to identify cause of obstruction
Index terms for O66.3
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Dystocia, fetal, abnormality NEC
- Dystocia, fetal, conjoined twins
- Hydrops, causing obstructed labor
- Deformity, fetal, causing obstructed labor
- Delivery, complicated, by, fetal, deformity
- Hydrocephalus, causing disproportion, with obstructed labor
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, tumor
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, ascites
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, hydrops
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, conjoined twins
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, hydrocephalic fetus
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, abnormality NEC
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, sacral teratoma
- Delivery, complicated, by, obstructed labor, due to, dystocia, due to, fetal, meningomyelocele
Related codes in O66
- O66.0 – Obstructed labor due to shoulder dystociaBillable
- O66.1 – Obstructed labor due to locked twinsBillable
- O66.2 – Obstructed labor due to unusually large fetusBillable
- O66.4 – Failed trial of laborHeader
- O66.5 – Attempted application of vacuum extractor and forcepsBillable
- O66.6 – Obstructed labor due to other multiple fetusesBillable
- O66.8 – Other specified obstructed laborBillable
- O66.9 – Obstructed labor, unspecifiedBillable
Frequently asked questions
What is ICD-10 code O66.3?
O66.3 is the ICD-10-CM code for obstructed labor due to other abnormalities of fetus, in the block O60-O77 (Complications of labor and delivery).
Is O66.3 a billable code?
Yes. O66.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does O66.3 belong to?
It belongs to category O66 – Other obstructed labor.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.