E13 (Other specified diabetes mellitus) compared with M14.6 (Charcôt's joint), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Not coded here — these two are mutually exclusive.
“Charcôt's joint in diabetes mellitus (E08-E13 with .610)”
An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.
Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a
No — do not report together. M14.6 carries an Excludes1 note covering E13: “Charcôt's joint in diabetes mellitus (E08-E13 with .610)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
| E13Other specified diabetes mellitus | M14.6Charcôt's joint | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Other specified diabetes mellitus is a non-billable ICD-10-CM category code (E13). | Charcôt's joint is a non-billable ICD-10-CM category code (M14.6). |
| Includes | diabetes mellitus due to genetic defects of beta-cell function diabetes mellitus due to genetic defects in insulin action postpancreatectomy diabetes mellitus postprocedural diabetes mellitus | Neuropathic arthropathy |
| Use additional code | code to identify control using: injectable non-insulin antidiabetic drugs (Z79.85) insulin (Z79.4) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources