T69.1 is the authoritative medical code for Chilblains. This classification is used in medical billing and clinical recording to specify the clinical criteria for chilblains (ICD-10-CM T69.1), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Chilblains is a non-billable ICD-10-CM category code T69.1. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): frostbite T33-T34. Use additional code: code to identify source of exposure:; Exposure to excessive cold of man-made origin W93; Exposure to excessive cold of natural origin X31. Code also: , if applicable, place of occurrence, such as:; highway rest stop Y92.523; school private public state as the place of occurrence of the external cause Y92.21-; service areas as the place of occurrence of the external cause Y92.52-; single-family non-institutional private house as the place of occurrence of the external cause Y92.01-; transport vehicle as the place of occurrence of the external cause Y92.81-. 7th character: The appropriate 7th character is to be added to each code from category T69.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T69.1 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
Code Also
Additional codes that may be required to fully describe the encounter.
- , if applicable, place of occurrence, such as:
- highway rest stop Y92.523
- school private public state as the place of occurrence of the external cause Y92.21-
- service areas as the place of occurrence of the external cause Y92.52-
- single-family non-institutional private house as the place of occurrence of the external cause Y92.01-
- transport vehicle as the place of occurrence of the external cause Y92.81-
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify source of exposure:
- Exposure to excessive cold of man-made origin W93
- Exposure to excessive cold of natural origin X31
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T69.1 be billed directly?
No. T69.1 (Chilblains) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T69.1 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T69.
Can T69.1 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, T69.1 and the following are not considered part of each other and may both be reported when both conditions are present: frostbite (T33-T34).
Is an additional code needed with T69.1?
Use additional code(s) to specify: code to identify source of exposure:; Exposure to excessive cold of man-made origin (W93); Exposure to excessive cold of natural origin (X31).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T69.1 in its code family, with their registry titles.
Indexed Clinical Terms (5)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Chilblain (s) (lupus)
- Dermatitis (eczematous), congelationis
- Effect, adverse, cold (temperature) (weather), chilblains
- Erythema, erythematous (infectional) (inflammation), pernio
- Pernio, perniosis