The Compendium of Caraka 6.13.47

6.13.47

tasya rūpāṇi---anannakāṅkṣāpipāsāgudasrāvaśūlaśvāsakāsadaurbalyāni, api codaraṃ nānāvarṇarājisirāsaṃtatamudakapūrṇadṛtikṣobhasaṃsparśaṃ bhavati, etadudakodaramiti vidyāt//

Its signs are: lack of desire for food, thirst, discharge from the rectum, colic, dyspnea, cough, and weakness; moreover, the abdomen is covered with streaks and veins of various colors, and has the feel of the agitation of a water-filled skin-bag—this one should recognize as udakodara.