ICD-10 Code for Candida Skin Infection Under Abdominal Fold
The appropriate ICD-10 code is B37.2 (Candidiasis of skin and nail), which specifically covers cutaneous candidiasis including intertriginous areas such as abdominal skin folds.
Primary Coding
- B37.2 is the definitive code for candidal skin infections affecting body folds, including the pannus or abdominal apron 1, 2
- This code encompasses intertrigo caused by Candida species in moisture-prone areas 1
Additional Codes to Consider for Complete Documentation
Post-Surgical Context
- If this infection developed following abdominal surgery, add a code from the T81.4- series (Infection following a procedure) to capture the post-operative nature 3
- The seventh character extension specifies the encounter type (A for initial, D for subsequent, S for sequela)
Anatomical Site Specification
- Consider adding L30.4 (Erythema intertrigo) as a secondary code if significant inflammation and maceration are present in the skin fold 2
- For patients with obesity contributing to the skin fold formation, add E66.- (Obesity) with the appropriate fourth character 2
Organism Identification
- If culture confirms specific Candida species (C. albicans, C. glabrata, etc.), B37.2 remains appropriate as it covers all Candida species causing cutaneous infection 4, 5
Clinical Documentation Requirements
To support accurate coding, ensure documentation includes:
- Specific anatomical location (infraabdominal fold, pannus, etc.) 1
- Whether this represents superficial colonization versus true infection requiring treatment 6
- Temporal relationship to any surgical procedure if applicable 3
- Presence of clinical signs of infection (erythema, satellite lesions, pruritus, maceration) rather than mere colonization 6, 1
Common Coding Pitfalls to Avoid
- Do NOT use codes for intra-abdominal candidiasis (K65.2 or similar) unless there is documented peritoneal or deep tissue involvement beyond superficial skin 3
- Do NOT code as surgical site infection (T81.4-) alone without the specific organism code B37.2, as both are needed for complete documentation 7, 8
- Do NOT confuse with candidemia (B37.7) - this is a localized skin infection, not bloodstream infection 4, 5
- Avoid using unspecified candidiasis codes (B37.9) when the skin location is clearly documented 1