Spinal and epidur anesth induce hdache during preg, unsp tri

This code describes a headache experienced by a pregnant patient that is directly attributed to spinal or epidural anesthesia, where the specific trimester of pregnancy is not documented. This is a post-dural puncture headache (PDPH) occurring in the context of pregnancy.

Use this code when a pregnant patient presents with a headache following spinal or epidural anesthesia, and the provider explicitly links the headache to the anesthetic procedure. Documentation should clearly state "post-epidural headache" or "post-spinal headache" during pregnancy, without specifying the trimester.

• Always sequence this code after the obstetric code (e.g., O80-O82 for delivery, or codes from O00-O9A for other pregnancy-related conditions).
• If the trimester is documented, use the more specific codes O29.41 (first trimester), O29.42 (second trimester), or O29.43 (third trimester).
• Distinguish from other types of headaches in pregnancy (e.g., O26.83- for headaches complicating pregnancy, not anesthesia-induced).