| M79 | Other and unspecified soft tissue disorders, not elsewhere classified | NON-BILLABLE CODE |
| M79.0 | Rheumatism, unspecified | BILLABLE CODE |
| M79.1 | Myalgia | NON-BILLABLE CODE |
| M79.10 | Myalgia, unspecified site | BILLABLE CODE |
| M79.11 | Myalgia of mastication muscle | BILLABLE CODE |
| M79.12 | Myalgia of auxiliary muscles, head and neck | BILLABLE CODE |
| M79.18 | Myalgia, other site | BILLABLE CODE |
| M79.2 | Neuralgia and neuritis, unspecified | BILLABLE CODE |
| M79.3 | Panniculitis, unspecified | BILLABLE CODE |
| M79.4 | Hypertrophy of (infrapatellar) fat pad | BILLABLE CODE |
| M79.5 | Residual foreign body in soft tissue | BILLABLE CODE |
| M79.6 | Pain in limb, hand, foot, fingers and toes | NON-BILLABLE CODE |
| M79.60 | Pain in limb, unspecified | NON-BILLABLE CODE |
| M79.601 | Pain in right arm | BILLABLE CODE |
| M79.602 | Pain in left arm | BILLABLE CODE |
| M79.603 | Pain in arm, unspecified | BILLABLE CODE |
| M79.604 | Pain in right leg | BILLABLE CODE |
| M79.605 | Pain in left leg | BILLABLE CODE |
| M79.606 | Pain in leg, unspecified | BILLABLE CODE |
| M79.609 | Pain in unspecified limb | BILLABLE CODE |
| M79.62 | Pain in upper arm | NON-BILLABLE CODE |
| M79.621 | Pain in right upper arm | BILLABLE CODE |
| M79.622 | Pain in left upper arm | BILLABLE CODE |
| M79.629 | Pain in unspecified upper arm | BILLABLE CODE |
| M79.63 | Pain in forearm | NON-BILLABLE CODE |
| M79.631 | Pain in right forearm | BILLABLE CODE |
| M79.632 | Pain in left forearm | BILLABLE CODE |
| M79.639 | Pain in unspecified forearm | BILLABLE CODE |
| M79.64 | Pain in hand and fingers | NON-BILLABLE CODE |
| M79.641 | Pain in right hand | BILLABLE CODE |
| M79.642 | Pain in left hand | BILLABLE CODE |
| M79.643 | Pain in unspecified hand | BILLABLE CODE |
| M79.644 | Pain in right finger(s) | BILLABLE CODE |
| M79.645 | Pain in left finger(s) | BILLABLE CODE |
| M79.646 | Pain in unspecified finger(s) | BILLABLE CODE |
| M79.65 | Pain in thigh | NON-BILLABLE CODE |
| M79.651 | Pain in right thigh | BILLABLE CODE |
| M79.652 | Pain in left thigh | BILLABLE CODE |
| M79.659 | Pain in unspecified thigh | BILLABLE CODE |
| M79.66 | Pain in lower leg | NON-BILLABLE CODE |
| M79.661 | Pain in right lower leg | BILLABLE CODE |
| M79.662 | Pain in left lower leg | BILLABLE CODE |
| M79.669 | Pain in unspecified lower leg | BILLABLE CODE |
| M79.67 | Pain in foot and toes | NON-BILLABLE CODE |
| M79.671 | Pain in right foot | BILLABLE CODE |
| M79.672 | Pain in left foot | BILLABLE CODE |
| M79.673 | Pain in unspecified foot | BILLABLE CODE |
| M79.674 | Pain in right toe(s) | BILLABLE CODE |
| M79.675 | Pain in left toe(s) | BILLABLE CODE |
| M79.676 | Pain in unspecified toe(s) | BILLABLE CODE |
| M79.7 | Fibromyalgia | BILLABLE CODE |
| M79.8 | Other specified soft tissue disorders | NON-BILLABLE CODE |
| M79.89 | Other specified soft tissue disorders | BILLABLE CODE |
| M79.9 | Soft tissue disorder, unspecified | BILLABLE CODE |
| M79.A | Nontraumatic compartment syndrome | NON-BILLABLE CODE |
| M79.A1 | Nontraumatic compartment syndrome of upper extremity | NON-BILLABLE CODE |
| M79.A11 | Nontraumatic compartment syndrome of right upper extremity | BILLABLE CODE |
| M79.A12 | Nontraumatic compartment syndrome of left upper extremity | BILLABLE CODE |
| M79.A19 | Nontraumatic compartment syndrome of unspecified upper extremity | BILLABLE CODE |
| M79.A2 | Nontraumatic compartment syndrome of lower extremity | NON-BILLABLE CODE |
| M79.A21 | Nontraumatic compartment syndrome of right lower extremity | BILLABLE CODE |
| M79.A22 | Nontraumatic compartment syndrome of left lower extremity | BILLABLE CODE |
| M79.A29 | Nontraumatic compartment syndrome of unspecified lower extremity | BILLABLE CODE |
| M79.A3 | Nontraumatic compartment syndrome of abdomen | BILLABLE CODE |
| M79.A9 | Nontraumatic compartment syndrome of other sites | BILLABLE CODE |
