Routine outcomes monitoring (ROM), combined with a psychotherapeutic intervention, can improve outcomes by assisting therapists in supporting patients who are off track to achieve a better treatment endpoint. While many ROM systems are suitable for particular clinical contexts, psychotherapy delivered in a hospital setting presents unique challenges. People can be treated as inpatients and daypatients, and psychotherapy may be delivered in multiple formats (e.g., closed and open groups; group and individual). The present case study will illustrate the adaptation of ROM to this environment with an 18-year-old woman with Borderline Personality Disorder. The patient was successfully treated with Dialectical Behavior Therapy as both an inpatient and daypatient. The case demonstrates the use of ROM systems and illustrate they are sufficiently flexible to accommodate these complexities of routine care.