R40.233
Coma scale, best motor response, abnormal flexion
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 9 never code together
R40code
R40-R46block
Excludes2
- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)F01-F99
R00-R99chapter
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 5
0 unspecified time
1 in the field [EMT or ambulance]
2 at arrival to emergency department
3 at hospital admission this code
4 24 hours or more after hospital admission
Instructional notes 16
R40.2code
Notes
- One code from each subcategory, R40.21-R40.23, is required to complete the coma scaleR40.21-R40.23
R40.233code
Inclusion terms
- Abnormal flexure posturing to pain or noxious stimuli (2-5 years of age)
- Coma scale motor score of 3
- Flexion/decorticate posturing (< 2 years of age)
R00-R99chapter
Notes
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:R00-R94
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Index entries leading here 1
Alongside this code 5 same parent — R40.23
R40.231 Coma scale, best motor response, none category R40.232 Coma scale, best motor response, extension category R40.234 Coma scale, best motor response, flexion withdrawal category R40.235 Coma scale, best motor response, localizes pain category R40.236 Coma scale, best motor response, obeys commands category
Subordinate codes 5
R40.2330 Coma scale, best motor, abnormal flexion, unspecified time R40.2331 Coma scale, best motor, abnormal flexion, in the field R40.2332 Coma scale, best motor response, abnormal flexion, EMR R40.2333 Coma scale, best motor response, abnormal flexion, admit R40.2334 Coma scale, best motor response, abnormal flexion, 24+hrs
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.