2026 ICD-10-CM Diagnosis Code O82Encounter for cesarean delivery without indication
ICD-10-CM Codes›O00-O9A›O80-O82›O82
- Billable — Valid for Submission
- Not Chronic
O82 is a billable ICD-10-CM diagnosis code for encounter for cesarean delivery without indication. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 998. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as cesarean section - pregnancy at term. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during childbirth.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O82.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cesarean section - pregnancy at term
- Delivered by cesarean section - pregnancy at term
- Deliveries by cesarean
- Delivery by cesarean hysterectomy
- Delivery by emergency cesarean section
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
- code to indicate outcome of delivery Z37.0
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Admission (for) See Also: Encounter (for);
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Cesarean Delivery
A cesarean delivery, also called a cesarean section or c-section, is surgery to deliver a baby. The baby is taken out through your abdomen (belly). In the United States, almost one in three babies are born this way. Some cesarean deliveries are planned.
The full article covers:
- What is a cesarean delivery?
- When is a cesarean delivery needed?
- How is a cesarean delivery done?
- What are the risks of a cesarean delivery?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O82 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O82Overview
What is the ICD-10 code for encounter for cesarean delivery without indication?
The ICD-10-CM code for encounter for cesarean delivery without indication is O82. It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is O82 (Encounter for cesarean delivery without indication) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for cesarean delivery without indication on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does O82 group to?
When encounter for cesarean delivery without indication is the principal diagnosis on an inpatient stay, it groups to MS-DRG 998 (principal Diagnosis Invalid as Discharge Diagnosis), which carries a relative weight of 0. Higher weights mean higher Medicare reimbursement.
Who can O82 be reported for?
The Medicare Code Editor checks encounter for cesarean delivery without indication against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
What is the ICD-9 equivalent of O82?
Under the General Equivalence Mappings, encounter for cesarean delivery without indication converts to ICD-9-CM 669.71 (cesarean delivery NOS). The mapping is approximate, so confirm the match fits the documentation.
