is treated as an action to establish child support if the issue was not addressed previously in the separation agreement or the divorce decree. McElrath v. Walker, 285 S.C. 439, 440, 330 S.E.2d 313, 313 (Ct.App.1985). However, when the divorce decree or separation agreement addresses the issue of child support, the petition is considered one for modification. Miller v. Miller, 299 S.C. 307, 310-11, 384 S.E.2d 715, 716-17 (1989) (reviewing the denial of a petition to decrease child support set by the divorce decree using the modification standard of changed circumstances). Additionally, it is possible for the issue of child support to be held in abeyance by the divorce decree or incorporated separation agreement. Boyer v. Boyer 291 S.C. 183, 184-85, 352 S.E.2d 514, 515-16 (Ct.App.1987) (<HOLDING>). Nevertheless, an agreement between the
holding that it was error for the trial court to determine the issue of child support without a child support guidelines worksheet holding that an outofwedlock childs pending claim for retroactive child support was nondischargeable in bankruptcy because a debt for child support arises upon the birth of the child and that the fact that no court had yet ordered the debtor to support the child does not take the debt outside the scope of 11 usc  523a5 holding that the trial court abused its discretion in failing to award the increased child support retroactive to the date of the petition for modification because the childs increased need for support and the former husbands ability to pay the increased child support existed at the time the former wifes petition for modification was filed holding that the court could award child support without a showing of changed circumstances where the original divorce decree awarded child support to be set after a specified time upon petition to the court holding that parents may not voluntarily terminate their rights in a child to avoid child support payments or contract away a child support obligation