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ICD-10 S90446A Code Mapping

Terms & Definitions

Alternative: Single ICD-9 code reproduces the complete meaning of one ICD-10 code. Cluster: Multiple ICD-9 codes representing single ICD-10 code. At times it requires multiple ICD-9 codes combined to reproduce the complete meaning of one ICD-10 code. Mapping Types: "Single Code-to-Single Code", "Single Code-to-Cluster", "Cluster-to-Single Code". Note: More than one ICD-9 code (cluster) may be a valid translation of a given ICD-10 code. Which one of those ICD-9 codes (clusters) is the most correct translation must be determined based on the clinical case.

ICD-10 S90446A (Diagnosis) to ICD-9 Mapping Options

Source ICD-10 Mapping Type Target ICD-9
Recommended Mapping (based on statistical analysis)
S90446A (Diagnosis) - External constriction, unsp lesser toe(s), init encntr (External constriction, unspecified lesser toe(s), initial encounter) Single To Single 9178 (Diagnosis) - Superf inj foot/toe NEC (Other and unspecified superficial injury of foot and toes, without mention of infection)
CMS/CDC General Equivalence Mappings
S90446A (Diagnosis) - External constriction, unsp lesser toe(s), init encntr (External constriction, unspecified lesser toe(s), initial encounter) Single To Single Alternative #1: 9178 (Diagnosis) - Superf inj foot/toe NEC (Other and unspecified superficial injury of foot and toes, without mention of infection)