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ICD-10-CM Code

Third degree perineal laceration during delivery, IIIa
Third degree perineal laceration during delivery with less than 50% of external anal sphincter (EAS) thickness torn

O70.2

Excludes1: anal sphincter tear during delivery without third degree perineal laceration (O70.4)
perineal laceration involving anal or rectal mucosa (O70.3)

O70

Includes: episiotomy extended by laceration

Excludes1: obstetric high vaginal laceration alone (O71.4)

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