M01.X7 — Direct infection of ankle and foot in infectious and parasitic diseases classified elsewhere
M01.X7 is a non-billable header ICD-10-CM code for direct infection of ankle and foot in infectious and parasitic diseases classified elsewhere. It cannot be billed on its own: choose one of the more specific child codes below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Direct infection of tarsus, metatarsus and phalanges in infectious and parasitic diseases classified elsewhere
Excludes1 inherited from the categories above M01.X7
These are not written on M01.X7, but they bind it: a note on a category applies to every code beneath it. Billing M01.X7 with anything listed here is a denial.
Written on M01 — Direct infections of joint in infectious and parasitic diseases classified elsewhere
- arthropathy in Lyme disease (A69.23)
- gonococcal arthritis (A54.42)
- meningococcal arthritis (A39.83)
- mumps arthritis (B26.85)
- postinfective arthropathy (M02.-)
- postmeningococcal arthritis (A39.84)
- reactive arthritis (M02.3)
- rubella arthritis (B06.82)
- sarcoidosis arthritis (D86.86)
- typhoid fever arthritis (A01.04)
- tuberculosis arthritis (A18.01-A18.02)
Other codes that can never be billed with M01.X7
These codes carry an Excludes1 note pointing at M01.X7. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M01.X7 alone.
- M02Postinfective and reactive arthropathies
Risk adjustment
M01.X7 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
M01.X7 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead M01.X7
3 child codes. Green means billable.
- M01.X71Direct infection of right ankle and foot in infectious and parasitic diseases classified elsewhere
- M01.X72Direct infection of left ankle and foot in infectious and parasitic diseases classified elsewhere
- M01.X79Direct infection of unspecified ankle and foot in infectious and parasitic diseases classified elsewhere
Related codes at this level
Codes that share M01.X. If M01.X7 is not quite right, the correct code is usually one of these.
- M01.X0Direct infection of unspecified joint in infectious and parasitic diseases classified elsewhere
- M01.X1Direct infection of shoulder joint in infectious and parasitic diseases classified elsewhere
- M01.X2Direct infection of elbow in infectious and parasitic diseases classified elsewhere
- M01.X3Direct infection of wrist in infectious and parasitic diseases classified elsewhere
- M01.X4Direct infection of hand in infectious and parasitic diseases classified elsewhere
- M01.X5Direct infection of hip in infectious and parasitic diseases classified elsewhere
- M01.X6Direct infection of knee in infectious and parasitic diseases classified elsewhere
- M01.X8Direct infection of vertebrae in infectious and parasitic diseases classified elsewhere
- M01.X9Direct infection of multiple joints in infectious and parasitic diseases classified elsewhere
Questions about M01.X7
- Is M01.X7 a billable ICD-10-CM code?
- No. M01.X7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M01.X7 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Infectious arthropathies (M00-M02).
- What cannot be coded together with M01.X7?
- M01.X7 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M01.X7 (M01) and apply to it just the same.