In simple words: This code describes a serious tear during childbirth affecting the area between the vagina and anus.The tear is deep, involving a muscle that helps control bowel movements.

This code classifies a third-degree perineal laceration during childbirth.The laceration involves the perineum (the area between the vagina and anus) and extends to more than 50% of the thickness of the external anal sphincter (EAS).This is a significant injury requiring specific medical attention and often involves repair.

Example 1: A 28-year-old primiparous woman delivers vaginally. During the delivery, a third-degree perineal laceration (IIIb) occurs, requiring surgical repair. , A 35-year-old multiparous woman experiences a significant perineal tear (O70.22) during a forceps-assisted vaginal delivery. The tear involves more than 50% of the external anal sphincter, necessitating immediate surgical repair by a qualified surgeon. Postoperative care includes pain management and follow-up appointments to assess healing., A 25-year-old nulliparous patient delivers vaginally, resulting in a third-degree perineal laceration (O70.22).The tear is repaired immediately postpartum.The patient receives appropriate pain management and is counseled on postpartum care, including bowel management strategies.

Detailed operative report describing the extent of the laceration, repair technique, and any complications.Complete obstetrical history including the mode of delivery and any relevant risk factors.Post-operative progress notes documenting wound healing, pain management, and return of bowel function.

** Accurate documentation is crucial for appropriate coding. The classification of the third-degree perineal laceration (IIIa, IIIb, IIIc) should be based on the extent of the damage to the external anal sphincter and internal anal sphincter, as defined by relevant obstetric guidelines.Always refer to the latest official ICD-10-CM coding guidelines for complete information.