G83.1 — Monoplegia of lower limb
G83.1 is a non-billable header ICD-10-CM code for monoplegia of lower limb. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Paralysis of lower limb
Risk adjustment
G83.1 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
G83.1 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 G83.1
5 child codes. Green means billable.
- G83.10Monoplegia of lower limb affecting unspecified side
- G83.11Monoplegia of lower limb affecting right dominant side
- G83.12Monoplegia of lower limb affecting left dominant side
- G83.13Monoplegia of lower limb affecting right nondominant side
- G83.14Monoplegia of lower limb affecting left nondominant side
Related codes at this level
Codes that share G83. If G83.1 is not quite right, the correct code is usually one of these.
Questions about G83.1
- Is G83.1 a billable ICD-10-CM code?
- No. G83.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G83.1 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Cerebral palsy and other paralytic syndromes (G80-G83).
- What cannot be coded together with G83.1?
- G83.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.