K04.4 is the authoritative medical code for Acute apical periodontitis of pulpal origin. This classification is used in medical billing and clinical recording to specify the clinical criteria for acute apical periodontitis of pulpal origin (ICD-10-CM K04.4), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Sequencing, inclusion, and exclusion notes published for K04.4 in the official ICD-10-CM tabular list.
Alternative terms the tabular list files under this code.
Conditions that can never be reported with this code; the two are mutually exclusive.
Per Excludes1 instructions, K04.4 must not be reported with: acute periodontitis (K05.2-).
Acute apical periodontitis of pulpal origin includes: Acute apical periodontitis NOS.
Official ICD-10-CM classifications in the same code family as K04.4, with their registry titles.
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: