O75.2 Pyrexia during labor, not elsewhere classified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from O75 Other complications of labor and delivery, not elsewhere classified

Excludes2 (not included here)

• puerperal (postpartum) infection (O86.-)
• puerperal (postpartum) sepsis (O85)

MS-DRG index

Defines the logic of DRG(s) 817-819 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 659.21 Maternal pyrexia during labor, unspecified, delivered, with or without mention of antepartum condition (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O75.2

Back-references to O75.2

• Type 2 Excludes: O86.4 Pyrexia of unknown origin following delivery ("pyrexia during labor (O75.2)")
• Type 1 Excludes: R50 Fever of other and unknown origin ("fever of unknown origin during labor (O75.2)")

Diagnosis Index entries for O75.2

• Delivery (childbirth) (labor) › complicated › by › fever during labor
• Pyrexia (of unknown origin) › during labor NEC

Nearby codes

• O75 Other complications of labor and delivery, not elsewhere classified
• O75.0 Maternal distress during labor and delivery
• O75.1 Shock during or following labor and delivery
• O75.2 Pyrexia during labor, not elsewhere classified (this code)
• O75.3 Other infection during labor
• O75.4 Other complications of obstetric surgery and procedures
• O75.5 Delayed delivery after artificial rupture of membranes
• O75.8 Other specified complications of labor and delivery
• O75.81 Maternal exhaustion complicating labor and delivery