ICD-10 code for Cracked nipple

The ICD-10-CM code for Cracked nipple is N64.0 (Fissure and fistula of nipple). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N64.0.

Within N64 (other disorders of breast), N64.0 is specifically for fissure and fistula of nipple. Related codes cover fat necrosis of breast (N64.1), atrophy of breast (N64.2), Galactorrhea not associated with childbirth (N64.3), Mastodynia (N64.4), other signs and symptoms in breast (N64.5), other specified disorders of breast (N64.8) and disorder of breast, unspecified (N64.9).

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 600 (Non-Malignant Breast Disorders with CC/MCC, relative weight 0.9975) and DRG 601 (Non-Malignant Breast Disorders without CC/MCC, relative weight 0.6017), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.