Chapter XVIII
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
(R00-R99)

Rules Conventions GCS DChS.XVIII.1 DCS.XIX.8

Symptoms and signs involving the nervous and musculoskeletal systems
(R25-R29)

R25 Abnormal involuntary movements

Excl.:
specific movement disorders ( G20-G26)
stereotyped movement disorders ( F98.4)
tic disorders ( F95.-)
R25.0 Abnormal head movements
R25.1 Tremor, unspecified
Excl.:
chorea NOS ( G25.5)
tremor:
R25.2 Cramp and spasm
Excl.:
carpopedal spasm ( R29.0)
infantile spasms ( G40.4)
R25.3 Fasciculation
Incl.:
Twitching NOS
R25.8 Other and unspecified abnormal involuntary movements
DCS.XVI.8

R26 Abnormalities of gait and mobility

Excl.:
ataxia:
immobility syndrome (paraplegic) ( M62.3)
R26.0 Ataxic gait
Incl.:
Staggering gait
R26.1 Paralytic gait
Incl.:
Spastic gait
R26.2 Difficulty in walking, not elsewhere classified
R26.3 Immobility
DCS.XVIII.3
Incl.:
Bedfast
Chairfast
R26.8 Other and unspecified abnormalities of gait and mobility
DCS.XVIII.3
Incl.:
Unsteadiness on feet NOS

R27 Other lack of coordination

Excl.:
ataxic gait ( R26.0)
hereditary ataxia ( G11.-)
vertigo NOS ( R42)
R27.0 Ataxia, unspecified
R27.8 Other and unspecified lack of coordination

R29 Other symptoms and signs involving the nervous and musculoskeletal systems

R29.0 Tetany
Incl.:
Carpopedal spasm
Excl.:
tetany:
R29.1 Meningismus
R29.2 Abnormal reflex
Excl.:
abnormal pupillary reflex ( H57.0)
hyperactive gag reflex ( J39.2)
vasovagal reaction or syncope ( R55)
R29.3 Abnormal posture
R29.4 Clicking hip
Excl.:
congenital deformities of hip ( Q65.-)
R29.6 Tendency to fall, not elsewhere classified
DCS.XVIII.4
Incl.:
Tendency to fall because of old age or other unclear health problems
Excl.:
accidents ( X59)
difficulty in walking ( R26.2)
dizziness and giddiness ( R42)
falls causing injury ( W00-W19)
falls due to diseases classified elsewhere
syncope and collapse ( R55)
R29.8 Other and unspecified symptoms and signs involving the nervous and musculoskeletal systems