O70.21 Third degree perineal laceration during delivery, IIIa

Name of the Condition

• Third degree perineal laceration during delivery, IIIa

Summary

Third degree perineal laceration during delivery, IIIa (ICD code O70.21) refers to a severe tear in the perineum during childbirth that extends into the anal sphincter but does not involve the rectal mucosa. This type of laceration is classified as IIIa when the tear is partial and does not fully disrupt the sphincter complex.

Causes

Most commonly, perineal lacerations occur as a result of the mechanical stress during vaginal delivery, particularly when the perineum is stretched beyond its capacity to accommodate the baby’s passage.

Risk Factors

• First-time vaginal deliveries
• Large birth weight of the baby
• Use of forceps or vacuum assistance during delivery
• Episiotomies
• Prolonged second stage of labor

Symptoms

• Significant pain, swelling, and bleeding around the perineal area
• Difficulty controlling bowel movements
• Discomfort during urination
• Sensation of pressure or fullness in the perineal region

Diagnosis

Diagnosis is primarily through a physical examination by a healthcare professional immediately after delivery to assess the extent of the tear and confirm the involvement of the anal sphincter.

Treatment Options

• Surgical repair to stitch and mend the torn tissues, including the anal sphincter
• Post-operative care includes pain relief management, use of stool softeners, and maintaining proper hygiene
• Antibiotics may be prescribed if infection is suspected

Prognosis and Follow-Up

With proper treatment, healing is typically successful, but regular follow-up is important to monitor recovery and address any complications such as infection or prolonged discomfort.

Complications

• Infection at the site of the tear
• Prolonged pain or discomfort
• Difficulty with bowel control (incontinence)
• Delayed healing

Lifestyle & Prevention

• Pelvic floor exercises during pregnancy may help strengthen the perineal muscles
• Avoiding excessive pushing during delivery when possible
• Using warm compresses or perineal massage in the weeks before delivery (under guidance)

When to Seek Professional Help

Seek immediate medical attention if there is severe bleeding, increasing pain, signs of infection (e.g., fever, pus), or difficulty with bowel or urinary control after delivery.

Tips for Medical Coders

When coding for O70.21, ensure documentation specifies the tear as third degree (IIIa) with partial anal sphincter involvement but no rectal mucosa disruption. Verify that the delivery context is clearly noted, as this code is specific to perineal lacerations occurring during childbirth.