• The objective of the research is to do translation and to culturally familiarize the COPENHAGEN Neck Functional Disability Scale into the Urdu language.
• To investigate if the COPENHAGEN Neck Functional Disability Scale is reliable and validate in the Pakistani population with Chronic Neck pain.
• To check the correlation with Neck Disability Index, Neck Pain and Disability Scale.

The English version of the COPENHAGEN Neck Functional Disability Scale will be translated into Urdu and culturally adapted, as per a previous recommendation. The COPENHAGEN Neck Functional Disability Scale will be given to participants who have consented, and would be chosen based on convenience sampling and inclusion and exclusion criteria. The inter-observer and intra-observer reliability of the COPENHAGEN Neck Functional Disability Scale, Neck Pain and Disability Scale , and Neck Disability Index will be evaluated in this study. On the same day, the questionnaire will be filled out created two times. An Inter - observer assessment will be done with 2 hour break between distributions of questionnaires. The initial observer then will gather a third assessment over one-week period. For data entry and analysis, Statistical Package of Social Sciences Version 23 will be utilized. Internal consistency will be checked using the Cronbach alpha value, and test retest reliability will be assessed using the Intra-class coefficient.

Inclusion Criteria:

• From 20 years Old to 60 Years Old
• Participants with chronic Neck pain
• The patient having minimum cervical ROM and pain.
• Patient not taking medicine.
• No intervention between the test-retest assessments.

Exclusion Criteria:

To complete the forms because of a psychological Impairment, history or presence of;

• Rheumatic diseases, severe articulation inflammation, and cardiac disease.
• History of previous cervical or thoracic spine injury
• Any systematic disease with an unstable spine
• Illiteracy or lack of understanding of Urdu Language
• The presence of neurologic or musculoskeletal disorders other than the Neck Condition.

Pakistani population with Chronic Neck pain will be part of the study.