ICD-10 code for stomach absence

The ICD-10-CM code for stomach absence is Z90.3 (Acquired absence of stomach [part of]). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Z90.3.

Within Z90 (acquired absence of organs, not elsewhere classified), Z90.3 is specifically for acquired absence of stomach [part of]. Related codes cover part of head and neck (Z90.0), breast and nipple (Z90.1), lung [part of] (Z90.2), other specified parts of digestive tract (Z90.4), kidney (Z90.5), other parts of urinary tract (Z90.6), genital organ(s) (Z90.7) and other organs (Z90.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.