ICD-10 Codes for Right Toe Amputation
For a right toe amputation, use ICD-10-PCS procedure codes 0Y6M0Z_ (complete amputation) or 0Y6N0Z_ (partial amputation) with the appropriate 7th character for the specific toe, and pair with relevant ICD-10-CM diagnosis codes such as E11.52 (diabetic foot ulcer), I70.263 (atherosclerosis with gangrene), or S99.9_ (traumatic injury).
ICD-10-PCS Procedure Codes
The procedure coding follows this structure:
Complete Amputation of Right Toe:
- 0Y6M0Z_ where the 7th character specifies which toe:
- 0Y6M0Z1 = Great toe
- 0Y6M0Z2 = Second toe
- 0Y6M0Z3 = Third toe
- 0Y6M0Z4 = Fourth toe
- 0Y6M0Z5 = Fifth toe
Partial Amputation of Right Toe:
- 0Y6N0Z_ with the same 7th character toe designation
The code structure breaks down as:
- 0 = Medical and Surgical
- Y = Anatomical Regions, Lower Extremities
- 6 = Detachment
- M/N = Right toe (complete/partial)
- 0 = Open approach
- Z = No device
ICD-10-CM Diagnosis Codes
The diagnosis code depends on the underlying reason for amputation:
Diabetic complications:
- E11.52 (Type 2 diabetes with diabetic peripheral angiopathy with gangrene)
- E10.52 (Type 1 diabetes with same)
Vascular disease:
- I70.263 (Atherosclerosis of native arteries of right leg with gangrene)
- I96 (Gangrene, not elsewhere classified)
Traumatic injury:
- S99.9_ series (Unspecified injury of ankle and foot, with laterality and encounter type)
Post-procedural status:
- Z89.42_ (Acquired absence of toe(s), right foot)
Important Coding Considerations
1 notes that ICD-10 codes for foot and ankle procedures include location, laterality, degree of healing, and encounter type—all critical elements that must be documented accurately.
Common Pitfalls to Avoid:
- Laterality errors: Always specify RIGHT toe explicitly in documentation
- Incomplete coding: Must include both procedure (ICD-10-PCS) AND diagnosis (ICD-10-CM) codes
- Missing 7th character: The specific toe designation is mandatory
- Encounter type confusion: Use appropriate 7th character for initial encounter (A), subsequent (D), or sequela (S) in diagnosis codes
Documentation Requirements:
Research shows significant coding inaccuracy rates in orthopedic procedures 2, 3, 4. To ensure accurate coding:
- Specify exact toe (great, second, third, fourth, or fifth)
- Document laterality explicitly as "right"
- Clarify complete vs. partial amputation
- State underlying diagnosis clearly (diabetic gangrene, trauma, infection, ischemia)
- Note approach (open is standard for amputations)
The clinical context matters significantly—5 emphasize that amputation decisions in diabetic foot infections should consider extent of necrosis, infection severity, vascular status, and functional outcomes, all of which should be documented to support the diagnosis code selection.